Ambient Air Monitoring Clean Air, Complete Compliance Go beyond traditional monitoring with precise, real-time air quality insights that are aligned with Provincial and Federal Regulations. END-TO-END SUPPORT From network design to equipment installation and operation, you can focus on your core business operations while we handle your system needs. COST-EFFICIENT MONITORING Our monitoring solutions deliver superior data quality, world-class service, and expert regulatory support effective to ensure performance in the most extreme conditions. PRIORITIZE HEALTH & SAFETY Stay informed about changing conditions in real-time to ensure the well-being of your employees, keeping health and safety at the forefront. Ambient Air Services Air Quality Monitoring | Meteorological Networks | Odour Assessments | Noise Consulting | Vapor Intrusion Programs Breathe Easy With Comprehensive Air Quality Monitoring Services Monitoring air quality is crucial for a clean environment. Our expert-driven national network offers a wide range of air quality services, ensuring both facility-specific and Canadian national standards are met. With us, you get thorough ambient monitoring, giving you peace of mind. Our responsibilities do not end with installation. We handle ongoing maintenance, calibrations, and third-part accuracy checks for impartial system verifications. With audits and evaluations, we can ensure systems are running properly and data is quality assured, no matter what province or territory you are in. Ambient Air Monitoring is pivotal for measuring outdoor air pollution levels, crucial for regulatory compliance, public health, and informed decision-making. With our deep expertise and broad services, Alliance has strong experience keeping facilities and projects compliant with provincial and federal air quality standards while also managing other critical aspects of you monitoring program like network design, equipment specification, regulatory support, quality assurance plans, and robust data reporting. Products and Services Ambient Air Quality Monitoring Stations Our ambient air quality monitoring programs measure Criteria Air Contaminants (CACs) in alignment with provincial and federal regulatory requirements. Typical parameters include nitrogen dioxide (NOx), sulphur dioxide (SO2), carbon monoxide (CO), ozone (O3), particulate matter (PM2.5), and site-specific contaminants of concern. Monitoring networks are designed to support compliance verification, community impact assessments, and long-term air quality trend analysis. Meteorological Monitoring Meteorological data is a critical component of ambient air monitoring and dispersion modelling. Our meteorological stations measure wind speed, wind direction, temperature, barometric pressure, relative humidity, and atmospheric stability. Data is collected and validated in accordance with Environment and Climate Change Canada best practices. Fenceline & GC Monitoring Advanced gas chromatograph (GC) analyzers provide speciated volatile organic compound (VOC) data for industrial and fenceline monitoring applications. GC and fenceline systems support provincial and federal industrial compliance programs, leak detection initiatives, and proactive community air quality management. These systems are commonly applied at petrochemical, manufacturing, and waste management facilities. Quality Assurance, Reporting & Ongoing Support Alliance provides full lifecycle support including network design, equipment installation, commissioning, calibration, maintenance, and third-party accuracy assessments. Data is quality assured and reported in formats aligned with provincial and federal reporting expectations. Monitoring results may also be shared with community stakeholders to support transparency and trust. Service Benefits Enjoy peace of mind thanks to our comprehensive Ambient Air Quality Monitoring services, ensuring compliance and clean air. Services extends to site equipment installation, network commissioning, ongoing operation, maintenance, and third party accuracy assessments. Collected data is diligently reported to both clients and regulatory agencies in the required format. Regulatory Compliance Ensuring compliance with local, provincial, and federal air quality regulations is pivotal for your operations. Ambient Air Monitoring helps you adhere to these regulatory mandates by providing precise measurements of air pollutants, averting potential legal complications and fines. Public Health Protection By monitoring and reporting the levels of harmful pollutants, these services also play a crucial role in protecting public health. The data obtained helps in identifying sources of community complaints, providing an expedient and transparent response, along with understanding and mitigating the adverse effects of air pollution in your community. Emission Control Strategies Monitoring ambient air quality provides essential data that aids in developing and implementing effective emission control strategies. By analyzing the trends and sources of emissions, industries and regulatory bodies can devise targeted interventions to reduce air pollution. Timely Data Provision Providing real-time or near real-time data on air quality to the public is essential for building trust and awareness. These services enable rapid and accurate dissemination of air quality information, which can also help build trust and greater engagement for your business. REQUEST INFORMATION “From field maintenance to final reporting, our team is committed to precision, transparency, and keeping communities healthy, safe, and informed.” Marcel van Heijst Ambient Air Quality Manager Sarnia, ON VIEW OUR ACCREDITATIONS Back to All Services Services / On-Site Testing / Fugitive Emissions / Ambient Air Monitoring

Discover comprehensive environmental testing services for air, water, soil, and waste matrices. Reliable results tailored for you. Services / Lab Testing & Analysis / Environmental Labs Environmental Labs Full-service environmental analysis. Streamline your project delivery with a one source provider for all your testing and analysis. Reduce risks with fast, reliable results, backed up by exceptional service from Alliance’s advanced labs. Comprehensive services. Our expansive national network of labs with 40+ state and TNI accreditations cover the full spectrum of advanced environmental testing and analysis for Air, Water, Soil, and Waste matrices. Industry-leading experience. Utilizing state of the art equipment and methods, the most experienced technical professionals, chemists and scientists in the industry are focused on delivering your data with maximum ease and minimum fuss. Client-centric consistency. Providing fast turnaround and consistently on-time results, with data reports and service tailored to our clients' specific testing and compliance requirements. Services & Solutions Water Testing Extensive knowledge of the permitting and testing requirements for all water matrices complements extensive analytical capabilities so Alliance delivers fast, applicable data to you in the precise format you’ll need. Wastewater & Non-Potable Water Drinking/Potable Water Groundwater/Monitoring Wells Stormwater Testing NPDES (National Pollutant Discharge Elimination System) Soil and Waste Testing and Analysis Alliance supports compliance demonstration, quality assessment and remediation services with standard regulatory and advanced analyses of solid materials, including soils. Land Reuse/Site Characterization Soil testing to support investigations and remediation activity. Includes Toxicity Characteristic Leaching Procedure (TCLP) analyses for evaluating the potential hazardous substances that leach into the ground. Air & Source Emissions Analysis Precise measurement of air quality samples for pollutants and hazardous gases including Cr6+, Hg, Metal HAPS, Acid Gases, and complex organics. Ambient Air/Soil-Gas Analysis TO15 and 8260 analysis for volatile organic compounds in air and soil-gas samples. Specified Tests and Methods PFAS (Per- and Polyfluoroalkyl Substances) PFAS (sometimes called "forever chemicals”) have emerged as one of the most concerning persistent pollutants of today. Alliance conducts all emerging regulatory methods across matrices to support risk assessment, management and environmental compliance projects focused on these highly persistent pollutants. Volatile and Semi-volatile Organics Methods like 8260, 624 for volatile organics, and 8270, 625 for semi-volatile organics. Metals and Inorganics Precise detections of lead, mercury, RCRA metals, arsenic, chrome, cyanide and other analytes of toxicity concern. Including tests for TDS (Total Dissolved Solids), TSS (Total Suspended Solids), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand). Organic and Niche Testing PCBs, Pesticides, Herbicides PCDD/PCDF (Dioxins/Furans) TPH (Total Petroleum Hydrocarbons) Radioactive substances Hydrocarbon testing of Recycled Oil Special Requests Added matrices that require specific or specialized testing are available on request. REQUEST INFORMATION Watch our PFAS Testing Video “Our network of environmental labs provides clients with direct access to local expertise on regulations, supported by a national network with extensive technical resources, including niche services like PFAS, PCDD/PCDF, and radiochemistry analysis.” Jordan Laster Senior Vice President, Laboratory & Analytical Alliance Lab Locations Expect proactive regulatory guidance, and consistent support for all your environmental sampling, testing, and analytical needs around the U.S. and into Canada. Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs around the country with local, regional, and federal testing requirement expertise. REQUEST INFORMATION DOD and NELAP accreditations; lab certifications in over 40 U.S. states and growing. map Back to All Services

Accurate source emissions testing services for compliance and performance. Ensure reliable data with Alliance Technical Group. Services / On-Site Testing & Monitoring / Source Testing Source Testing Quantify emissions at the source. Accurate, defensible source testing data that’s measured, analyzed, and reported reliably every time. Our skilled professionals consistently and rapidly deliver that first-class quality service which translates directly into our high client retention and satisfaction rates. Resource-ready. A wide North American footprint and consistent investment in state-of-the-art equipment positions our dedicated teams of skilled specialists to respond efficiently to each client’s source testing needs. Trustworthy expertise. The multi-disciplinary expertise of our staff ensures our clients receive full-service guidance on regulatory compliance, industrial processes, source emissions testing, monitoring, and analysis. Actionable insights. Accurate, quality-controlled emissions data enables clients to make real time data-driven decisions—and our dedicated Technical Services team ensures test results are accurately reported to regulatory authorities. Services & Solutions Source Testing Stack | CEMS/Temp CEMS | Engine Testing | RNG Stack Testing Committed to your specific stack testing needs—Alliance’s combination of innovation, technology, and reliability is anchored by a seasoned team of scientists, QSTI-certified professionals, and tenured stack testing managers driving your projects to successful completion. Compliance Demonstration | Engineering/Investigative Test Programs | On-Site FTIR Spectroscopy | Specialty Testing | Low Level PM Sampling | Performance Specification Testing (RATA) Stack Service Details CEMS (Continuous Emissions Monitoring System Services) Reduce your downtime risk with CEMS tailored to your local needs and count on our extensive spare parts stock for fast service on your specific brand of equipment. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental compliance and operational success. Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training Equipment Upgrades | Maintenance | QA/QC Audits | RATA CEMS Service Details Engine Testing Boost efficiency and safety for your combustion source program with our expert advice and mobile solutions.  Our engine testing platform is designed to gauge performance in real-time, which helps you manage your operations and compliance status more efficiently. Flexible Scheduling & Mobility | Fast Response | Reduces Risks It’s a smart move to protect your operations from risks, extend the life of your engines, and get an edge in the market. Engine Testing Details RNG (Renewable Natural Gas Services) As the demand for renewable natural gas grows, so do the challenges associated with meeting the rigorous pipeline quality standards. These low-level requirements provide no room for sampling or analytical error. We have the expertise and advanced equipment to ensure accuracy, every time. Sampling | Analysis | Reporting | Compliance | Batch Pathway Testing | Product Transfer Documents | Third Party Audits | Investigative Consulting/Engineering Let Alliance’s experienced technicians simplify the sampling, analysis, and reporting procedures for you. Using advanced equipment and analytical capabilities, we manage every step of the RNG testing process. RNG DETAILS Talk to an Expert “It’s our daily priority to put in the work to build a culture where Quality, Integrity and Consistency are the standard. Our clients benefit from that culture in the form of accurate, defensible test data provided by skilled professionals.” Ryan O’Dea Senior Vice President, Stack Testing Learn more about Source Testing. Back to All Services

Services / On-Site Testing / Fugitive Emissions / SkyBridge Software SkyBridge Software Suite Transform with SaaS. SkyBridge cloud-based Software as a Service (SaaS) platform is specially developed for seamless, scalable, secure, and compliant real-time data management of LDAR, OGI, Cooling Towers, Fenceline Monitoring, and Air Permitting. Solutions SkyBridge Share accurate LDAR field data as it’s being captured and already updating your records in real-time. Safer and simpler than on-premises systems, SkyBridge ensures gated access with no firewall breaches, saves labor and IT costs, cuts errors, and is user-friendly. In addition to supporting traditional Method 21 monitoring, SkyBridge has built-in support for OGI camera surveys as well allowing for mixed-mode monitoring whether you are doing AWP or just supplemental monitoring with the camera. Cloud-Based Mobility | Real-Time Field Data | Accurate & Secure | Comprehensive Reporting | Seamless Updates SkyBridge OGI For compliance database management, SkyBridge OGI tackles midstream and upstream optical gas imaging challenges for the oil and gas industry, plus fugitive emissions programs in other industries by eliminating manual tasks, fragmented data, and weak security. Reduced Risks | Auto-generated CEDRI reports | Instant image/video uploads | Secure real-time data synchronization Get a Custom Demo Request your own simulated SkyBridge OGI demo when you contact us for more information. SkyBridge Fenceline Monitoring Experience the ease and efficiency of managing your program with SkyBridge Fenceline Monitoring software. With built-in regulatory requirements and business rules, instant data transfer and in-field documentation—make smart, fast data-driven decisions. Eliminate mundane manual tasks and wasted hours of work, and reduce risks from human errors. SkyBridge Cooling Towers Manage your cooling system with our secure, user-friendly solution. Eliminate data loss, boost efficiency, and organize inventory with a web app. For better decision-making, streamline reporting with detailed inspections, emissions reports, and inventory lists. Easily check your field data anytime, anywhere—whether you’re on a PC, laptop, tablet, or phone. All you need is a web browser. Ready to transform with SkyBridge? Your people will thank you for the user-friendly interfaces and streamlined efficiency. REQUEST INFORMATION See How SkyBridge OGI Works "Seamlessly designed for environmental teams, SkyBridge prioritizes compliance, efficiency, and data quality. Our intuitive suite of solutions enables you to confidently manage complex regulations, minimize time-consuming processes, and maintain data integrity—all in one place and in real-time." James Naron Vice President, Technology Back to All Services

Comprehensive solutions for continuous emissions monitoring and compliance. Manage all your leak detection needs with Alliance today. Services / On-Site Testing & Monitoring / Source Testing Renewable Natural Gas Quantify emissions at the source. Accurate, defensible source testing data that’s measured, analyzed, and reported reliably every time. Our skilled professionals consistently and rapidly deliver that first-class quality service which translates directly into our high client retention and satisfaction rates. Services & Solutions Source Testing Stack | CEMS/Temp CEMS | Engine Testing | RNG Stack Testing Committed to your specific stack testing needs—Alliance’s combination of innovation, technology, and reliability is anchored by a seasoned team of scientists, QSTI-certified professionals, and tenured stack testing managers driving your projects to successful completion. Compliance Demonstration | Engineering/Investigative Test Programs | On-Site FTIR Spectroscopy | Specialty Testing | Low Level PM Sampling | Performance Specification Testing (RATA) Stack Service Details CEMS (Continuous Emissions Monitoring System Services) Reduce your downtime risk with CEMS tailored to your local needs and count on our extensive spare parts stock for fast service on your specific brand of equipment. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental compliance and operational success. Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training Equipment Upgrades | Maintenance | QA/QC Audits | RATA CEMS Service Details Engine Testing Boost efficiency and safety for your combustion source program with our expert advice and mobile solutions.  Our engine testing platform is designed to gauge performance in real-time, which helps you manage your operations and compliance status more efficiently. Flexible Scheduling & Mobility | Fast Response | Reduces Risks It’s a smart move to protect your operations from risks, extend the life of your engines, and get an edge in the market. RNG (Renewable Natural Gas Services) As the demand for renewable natural gas grows, so do the challenges associated with meeting the rigorous pipeline quality standards. These low-level requirements provide no room for sampling or analytical error. We have the expertise and advanced equipment to ensure accuracy, every time. Sampling | Analysis | Reporting | Compliance | Batch Pathway Testing | Product Transfer Documents | Third Party Audits | Investigative Consulting/Engineering Let Alliance’s experienced technicians simplify the sampling, analysis, and reporting procedures for you. Using advanced equipment and analytical capabilities, we manage every step of the RNG testing process. REQUEST INFORMATION Learn more about Source Testing. Back to All Services

Discover expert environmental consulting services by Alliance Technical Group. Ensure compliance and optimize your operations. Services / Environmental Compliance / Environmental Consulting Environmental Consulting Answers you want for insights you need. A trusted authority on refining, chemical manufacturing, and oil & gas industries, Alliance partners with you to provide professional guidance, specialized services, and precision-driven solutions in air, water, and natural resources. With proficient and efficient environmental consultants on your team, you can be confident in accuracy, consistency, and responsiveness. Security of one source. Working with one proven, capable partner helps simplify processes, reduce risks, and build stronger business relationships with greater strategic value. Compliance peace of mind. With active roles in various trade groups, our consultants assure your regulatory compliance with comprehensive plans and step-by-step support. Short response times guaranteed. It’s never a good time for an incident, but our rapid-deployment teams get clients back on track fast, with mitigation strategies to minimize costs and protect reputations. Services & Solutions Environmental Consulting Air Quality | Water Quality | Natural Resources | Engineering Specialists in designing and building environmental programs that work, our consultants help you identify, understand, and address potential areas of environmental vulnerability and risk. Air Quality Services Air Permitting Collaborating with environmental, operational, and project teams, we deliver permit applications that effectively minimize compliance risks. We also work with local, state, and federal agencies to secure permits swiftly. Air Compliance Get tailored compliance and tracking solutions developed specifically for your organization. Air Dispersion Modeling Providing nationwide expertise in air pollutant dispersion modeling, Alliance consultants conduct NAAQS impact evaluations and state toxics screenings, with proficiency in various air dispersion models such as SCREEN3, ISCS, AERSCREEN, AND AERMOD. Reporting Building on a significant track record of successful reports that adhere to regulatory requirements, Alliance also provides the detailed, internal documentation required to obtain responsible official certification. GMAP (Geospatial Measuring of Air Pollutants) On-Demand Mobile Monitoring From identifying unknown emission sources and enhancing existing programs to assisting with EPA inspections and responding rapidly during incidents—GMAP uses real-time technology to deliver live data that can be accessed while in the field, allowing for immediate compliance. Risk Reduction | Real-Time Air Monitoring | Detailed Snapshots | Customized Backed by extensive expertise from EPA’s Office of Research and Development (ORD) GMAP program. Odour Assessment Services Odours from agricultural, commercial, industrial, and municipal sources can negatively affect nearby residents. Alliance offers specialized solutions for all your odour challenges. Odour Impact Assessments | Odour Emission Source Sampling |Odour Compliance Testing | Odour Consulting – Expert Witness Testimony Water Quality Services Hydrological & Hydraulic Studies Assisting you with TMDL, waste load allocations, and flow analysis, our specialties include dye tracer studies, flow modeling (such as HEC-RAS), and direct flow measurements. We help calculate regulatory low flows (e.g., 7Q10) to adjust pollutant load limits, working closely with state agencies, USGS, and EPA to ensure your water quality projects are successful. NPDES Permitting Your goal is our mission—to minimize costs associated with meeting water quality standards and effluent guideline requirements. We cover permit application development, review and negotiations; Adjudication support, reparation of pollution prevention plans, and NPDES data systems management (including DMR preparation). Stormwater Assisting industrial, construction, and municipal clients achieve cost-effective compliance with local, state, and federal stormwater discharge regulations. Natural Resources Biological Assessment Leveraging advanced techniques for fish, macroinvertebrate, periphyton, zooplankton, phytoplankton, and habitat analysis across diverse environments, our specialists are equipped to handle multiple site surveys in various waterbody sizes. Human Health Ecological Risk Assessment With more than 50 years of combined experience in water, groundwater, soil/sediment, and air, our team of scientists, toxicologists, and engineers provide ecological and human health risk assessments for industrial clients, with concerns ranging from heavy metals to organic pollutants. Stream and Wetland Restoration and Mitigation From step-pools and riffles to bank stabilization and in-stream habitat features, our team of ecologists, hydrologists, engineers, and wetland scientists collaborate to effectively restore and enhance wetland habitats for mitigation and water/stormwater treatment. USACE Permitting Providing strategic US Army Corps of Engineers (USACE) permitting services to reduce, avoid, or minimize impacts on Waters of the US, while controlling permitting and mitigation costs. Civil and Environmental Engineering Water, Wastewater, and Stormwater Design We provide solutions to wastewater, stormwater, and potable water infrastructure requirements for municipal, commercial, and industrial clients. Site Design Our site design capability includes planning, permitting, design, bidding, construction administration, and construction inspections. We serve residential and commercial developments, railways, and industrial facilities. Permitting & Funding Assistance We provide regulatory guidance and compliance assistance navigating the application of various federal and state environmental and permitting programs, and low-interest funding and loans. Industrial Process Capabilities Alliance has a team of engineers experienced in project studies and the design of industrial process solutions for chemical, pulp & paper, and pharmaceutical plants. Process and Mechanical Engineering As part of our industrial engineering services, we provide process and mechanical engineering studies to improve productivity by identifying, correcting or preventing weaknesses in the manufacturing and process systems. Surveying and Mapping Alliance has both licenced surveyors and GIS mapping experts in order to provide a seamless approach to every job and a higher-quality end result. REQUEST INFORMATION “Compliance is not just a requirement but a commitment. Our proactive approach to environmental compliance ensures that we not only meet regulatory standards but exceed them—leading the way in assisting our clients with their compliance goals.” Jeff Lask Senior Vice President, Environmental Compliance Division HON RTR Amendment Years of Details. Clear Road to Compliance. The final EPA Risk and Technology Review (RTR) amendments for Hazardous Organic NESHAP (HON) became effective on July 15, 2024 . It’s important to know what, when and how to plan for your course of action. Find critical compliance dates, requirements, and advice as you begin your implementation programs. Air Reporting Deadlines Interactive Map Staying compliant with environmental air reporting deadlines shouldn’t be a guessing game. That’s why we created a free interactive U.S. map that lets you: Find your state's specific air reporting deadlines Print a customized deadline list for your state Add key deadlines directly to your calendar Explore the map and take control of your compliance. VIEW AIR REPORTING MAP Back to All Services

2200+ Dedicated Employees 60+ Locations in the US and Canada 140+ Mobile Laboratories Our Journey Founded in 2000 in Alabama as a small stack testing company, Alliance has since expanded into a full-service environmental compliance provider and a recognized leader in the North American market. A lot has changed for us since then, but one thing never will—we still put our clients first. EMPLOYEES 2000–2012 BUILDING THE BUSINESS 2012–2016 GROWTH THROUGH INVESTMENT 2016–2021 RAPID GROWTH & SERVICE LINE EXPANSION 2021–TODAY SCALING A NATIONAL/GLOBAL PLATFORM 2000 2 2005 10 2010 20 2015 50 2018 125 2020 675 2021 820 2022 945 2023 1,430 2024 1,720 2025 2,205 Stack Testing Lab Testing LDAR Ambient Air Consulting CEMS Software We are a new kind of environmental services company—powered by innovation, focused on service, and committed to your success. Acquisitions Since 2017, we have worked to increase our reach and improve our services through investments in our people, technology, and with acquisitions of these core businesses. Expand to see acquired companies 2025-2026 Protocol2 Air Sciences Inc. Element One Labs Mid Continent Testing Labs Earth Analytical Sciences Global Analyzer Systems ESC Spectrum Environmental 360 Slipstream Environmental Services 2023-2024 DeNovo Global Technologies Ranger Analytics (Merger) GOLD, LLC CEMServices Rogers & Callcott Advanced Industrial Resources CEMSI Integrity Air Monitoring RSB Environmental Ortech Consulting Chemtech Consulting Group CEC Stack Test Group Summit Env. Tech Orange Coast Analytical Fremont Analytical Chester LabNet 2021-2022 GBMc & Associates EcoTest GuideWare CK Environmental InspectionLogic Pace Environmental CEM Solutions Interpoll Ace Consultants AAS Horizon Air Measurement Services Air Quality Services O’Brien & Gere EMSI Aeros Environmental 2017-2020 Almega Environmental and Technical Blue Mountain Summit Inspection Services METCO Environmental Air Pollution Testing Golden Specialty Our Reach With over 60 testing and laboratory locations across the United States and Canada, we are where you need us. Leadership Our team stands behind everything we do and commits to helping you succeed. From our frontline engineers and technical experts to our senior leaders, we are here for you. FROM LEFT: Chris LeMay, Jim Herr, Kim Van Soelen, Premal Vora Chris LeMay Chief Executive Officer Kim Van Soelen Chief Commercial Officer Jim Herr Chief Administrative Officer Premal Vora Chief Strategy Officer About Creating new possibilities and outcomes for our clients. Since 2000, we have been solving the problems of environmental management and compliance for some of the foremost companies and brands in North America. From on-site testing and monitoring, to laboratory testing and regulatory strategy, we are pushing out the limits of what is possible. We help our clients achieve their business objectives while also supporting their sustainability goals. OUR SERVICES

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HON RTR Amendment Years of Details. Clear Road to Compliance. The final EPA Risk and Technology Review (RTR) amendments for Hazardous Organic NESHAP (HON) became effective on July 15, 2024. It’s important to know what, when and how to plan for your course of action. Keep this page handy to quickly find critical compliance dates, requirements, and advice as you begin your implementation programs. Affected Source Types Content h3 What’s Changing? When’s Your Compliance Deadline? For every affected source—it’s wise to act early so you’ll have the foresight to understand where moderations and capital costs may be needed, and how to strategize the scheduling. Expand the tiles for key HON RTR facts at a glance. Our experts will soon be updating their areas with tips and advice. For immediate questions, contact our HON team for answers. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Together. Proactively. At Alliance Technical Group, our consultants and other subject matter experts review regulations that affect our clients. They are dedicated to knowing your industry needs and delivering tailored, best-in-class solutions. We encourage you to get familiar with the most recent HON amendments here. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Meet the Expert Jill Martin, Project Director, Environmental Consulting Jill’s extensive experience with the Chemical Manufacturing Sector, including her expertise with HON, makes her your trusted partner. Compliance Program Implementation Support | Gap Analyses | Technical Support Jill’s Proficiencies: Air Compliance Initial Compliance and Other Applicability Determinations (Chemical Manufacturing Sector NSPS and NESHAP regulations & Petroleum Refinery Sector NSPS and NESHAP regulations) Comprehensive Compliance Program Development (Above ground Storage Tanks, RICE, CEMS, Flares) Reporting Greenhouse Gas Mandatory Reporting Requirements Emissions Inventory Toxic Release Inventory Title V Compliance Reporting Consent Decree Compliance Reporting Periodic NSPS Compliance Reporting Periodic MACT Compliance Reporting Air Permitting Title V Permitting Miscellaneous Permitting Actions Public Notice Coordination Miscellaneous RCRA Permitting and Compliance Stack Test Observation Ambient Air Monitoring Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Partners in Proactive Implementation Quelling Concerns. Answering Questions. With so many details to know about HON RTR amendments, is your path to compliance clear for you? What’s the impact going to be, and how do you get started? Tap into Jill’s expertise and Alliance resources for your solutions. Between Jill and our other subject matter experts at Alliance, clients receive the most premium end-to-end environmental services from expert consulting services to testing, monitoring, and laboratory services available. Get reliable and prompt solutions for whatever regulatory challenges you may have. It’s the better way to ensure compliance. Get Help With Hon Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later.

Services / On-Site Testing / Source Testing / CEMS CEMS Reduce your downtime risks with continuous monitoring. CEMS (Continuous Emissions Monitoring System) services are tailored to your compliance needs, and you can count on our extensive spare parts stock for fast service on your specific brand of equipment. Our CEMS areas of expertise cover a broad range of equipment types and industries. Alliance provides a comprehensive solution for emissions management, ensuring regulatory compliance, accurate monitoring, and timely maintenance. CEMS Service Offerings: Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training | Equipment Upgrades | Maintenance | QA/QC Audits | RATA Support Round-the-Clock Support: 24/7/365 support is always within reach. Fully Stocked Parts Inventory: The OEM brand name parts you need are on hand. Regulatory Assurance: Continuous monitoring and reporting to ensure compliance. Less Downtime: Reliable service and responsiveness optimize CEMS performance. Accurate Monitoring: Precise real-time emissions data for compliance and operations. Predictive Maintenance: Scheduled maintenance based on data trends to predict and prevent system failures. Cost Control: Regular maintenance controls repair costs and operational downtime. Knowledge Transfer: Expert training for environmental personnel, plant operators and technicians enhances system understanding and operation. Dedicated Temp CEMS Stay compliant, even during emergencies, with speedy service from our dedicated team of Temp CEMS experts and innovative mobile equipment. Minimize production downtime and maximize data collection with a customized Temp CEMS system, and expert technical and regulatory guidance. Assess the root cause of your existing system failure and design improved permanent systems with our CEMS specialists. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental and operational success. REQUEST INFORMATION “Our CEMS support hotline, deep bench of field service engineers, and large inventory of parts allows us to quickly respond to emergencies and solve issues efficiently.” Jason Miller Vice President, CEMS Read more about CEMS and Temporary CEMS services: Back to All Services

We support leading companies and brands across a wide range of industries. Markets we serve. With profound understanding of your space and operation, we are committed to delivering high-quality, specialized insight and support, provided by experts. We understand the special challenges of each sector and have the experience, approach, and capabilities to make a difference in a wide range of industries. Building & Construction Chemical & Processing Data Centres Energy & Power Environmental & Waste Management Food & Consumer Goods Government & Institutions Manufacturing & Production Oil & Gas Pulp & Paper Semiconductors REQUEST INFORMATION Learn more. Find out how we can support your business with our range of services. With expertise in a variety of end markets, Alliance is focused on People, Process, and Technology to provide unparalleled response and service to assist clients with meeting their air compliance and risk reduction goals.

Reach out to us for your testing, monitoring, and lab needs. +1 403-291-4828 Experience a better way with Alliance. Request more information below or use the locations map to contact one of our offices directly. Our Reach With over 60 testing and laboratory locations across the United States and Canada, we are where you need us. Contact us

Delivering every environmental compliance service and solution your company needs. Let's get started. Discover our integrated line of services designed to meet all the environmental compliance needs and challenges your company faces. How can we make your compliance journey better? ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Minimize risk and maximize results with the clarity, insight, and deep domain knowledge needed to make informed decisions. Alliance consultants and compliance professionals are committed, responsive experts at uncovering innovative solutions to your challenges. Environmental Consulting Air Natural Resources Water Compliance Services Audits Emissions Reporting Environmental Compliance Approvals Health/Safety Land Use Planning Permitting Assessment & Remediation Due Diligence Engineering Remediation On-site Testing & Monitoring Testing and monitoring tailored to your needs. Your testing and monitoring results are critical and cannot be compromised. We are your resource for expert testing and precision monitoring, and with a dedicated team of collaborative professionals who understand the regulatory needs and requirements here in Canada, we are well positioned to help support your compliance needs. Source Testing & Monitoring Comprehensive Stack Testing CEMS Audits and Engine / MSAPR Services Temporary CEMS Systems Fugitive Emissions Leak Detection & Repair Optical Gas Imaging Aerial Monitoring Alt-Femp & AWP Database Management Skybridge Software Suite Ambient & Water Services Air Quality Monitoring Fenceline Applications Sensor Networks Meteorological Stations Calibrations & Maintenance Dispersion Modeling Quality Assurance & Reporting Laboratory Testing & Analysis A national lab network that puts the focus on you. Receive fast results and client focus of a local lab, with the capabilities and reach of an advanced national lab network. If your current lab provider doesn’t meet all your testing needs and timelines, or fails to offer actionable and effective results, turn to Alliance labs. Environmental Lab Services Water Waste PFAS Oil & Gas Lab Services Upstream Midstream Downstream

Services / On-Site Testing / Fugitive Emissions / Optical Gas Imaging Optical Gas Imaging (OGI) See the Unseen Using Optical Precision OGI cameras are engineered to rapidly detect leaks with high-resolution imaging, enabling the visual identification of even the smallest gas leaks across many hundreds of components. EXPERIENCE Our certified OGI technicians, including licenced drone pilots and seasoned leaders, bring deep expertise and widespread coverage across the U.S. and Canada, with extensive field experience in optical gas imaging. EQUIPMENT We deploy a robust inventory of OGI cameras, drone-camera systems, and portable Method 21 VOC analyzers—supported by our cloud-based platform for efficient data reporting and management via web and mobile. PROJECTS & CLIENTS As a trusted LDAR partner, we serve oil and gas companies throughout North America, delivering proven results across a wide range of projects involving well pads, tanks, and pipeline infrastructure. OGI Services Optical Gas Imaging (OGI) is a game-changing technology that enables the visual detection of gas leaks in real time—quickly, safely, and with unparalleled accuracy. By identifying fugitive emissions at the source, OGI enhances operational safety, reduces environmental impact, and lowers compliance costs for industrial facilities. Alliance Technical Group offers industry-leading OGI services backed by a seasoned team, robust data systems, and a commitment to quality. Whether you operate upstream, midstream, or downstream, our nationwide team delivers high-performance leak detection where and when it matters most. Applications OGI is a flexible solution ideal for diverse industrial sectors and applications: Upstream: well pads, offshore rigs, crude storage Midstream: pipelines, gas terminals, compressor stations Downstream: refineries, above-ground storage tanks Other Sectors: gas utilities, biogas plants, landfills, mining, semiconductor manufacturing OGI is also effective for detecting emissions from compressor rod packing systems, which are a common source of methane leaks in reciprocating engines. By visualizing and pinpointing these leaks in real time, operators can take corrective action before emissions exceed regulatory thresholds or impact equipment performance. Learn More About Our Engine Testing Services What are the benefits of having an OGI camera program? Reduce product loss Increases safety for workers and operators Decreases hazardous exposure for the surrounding community Reduces or eliminates potential fees and fines Regulatory Coverage Our services are fully aligned with federal and state requirements, including: Subparts OOOOa, OOOOb, OOOOc Subpart W 40 CFR Part 60, Appendix K Alternative Work Practice (AWP) Regional standards like Rules 1173 & 1178 SkyBridge OGI Software SkyBridge is our proprietary, cloud-based platform designed to streamline leak detection workflows. It enables: Real-time image capture and tagging Synchronized data entry across sites Secure mobile and web access Simplified reporting and regulatory documentation This all-in-one system eliminates manual processes and fragmented tools, giving clients a centralized, efficient solution for emissions management. See How SkyBridge OGI Works REQUEST INFORMATION "At Alliance we strive to make the inspections as affordable as possible while maintaining the best quality inspections in the industry. In most cases we complete the OGI inspections for less than the cost of a control valve, regulator or PRD." Leonard Robinson Manager, OGI VIEW OUR ACCREDITATIONS Back to All Services

Canadian Anti-Spam Legislation (CASL) Compliance Policy Alliance Technical Group North Website: https://www.alliancetg.ca Our Commitment Alliance Technical Group North ("Alliance" or "we") is committed to complying with Canada's Anti-Spam Legislation (CASL) and respecting the communication preferences of our customers, partners, and contacts. Scope This policy applies to all commercial electronic messages (CEMs) sent by Alliance Technical Group North, including marketing emails, newsletters, promotional communications, and other electronic messages sent for commercial purposes. Consent Requirements Express Consent We obtain express consent before sending commercial electronic messages by: Providing clear and conspicuous opt-in mechanisms on our website forms Clearly describing the types of messages recipients will receive Including our contact information in all consent requests Maintaining records of consent including date, method, and content of consent request Implied Consent We may rely on implied consent in the following circumstances: Existing business relationships within the timeframes specified by CASL Inquiries or applications made within the previous six months Conspicuous publication of electronic addresses without restriction on use Message Requirements All commercial electronic messages sent by Alliance include: Clear identification of Alliance Technical Group as the sender Our physical mailing address and contact information A functioning unsubscribe mechanism in every message Clear subject lines that accurately reflect message content Unsubscribe Mechanism Recipients can unsubscribe from our commercial electronic messages at any time by: Clicking the unsubscribe link included in every email Contacting us directly at the address provided in our messages Emailing us at info@alliancetg.com We process all unsubscribe requests within 10 business days, as required by CASL. Record Keeping Alliance maintains records of: Consent obtained (express and implied) Content of consent requests Unsubscribe requests and processing All commercial electronic messages sent These records are retained for a minimum of three years as required by CASL. Employee Training Alliance ensures that employees and contractors involved in sending commercial electronic messages receive appropriate training on CASL requirements and this compliance policy. Policy Review This policy is reviewed annually and updated as necessary to reflect changes in CASL requirements and our business practices. Contact Information For questions about this policy or to exercise your rights under CASL, please contact: Alliance Technical Group info@alliancetg.com Canadian Headquarters 1100 Dearness Drive, Unit 11 London, Ontario N6E 1N9 Canada 1-866-236-7732 U.S. Corporate Headquarters 255 Grant St. SE Ste 600 Decatur, AL 35601 +1-256-351-0121 This policy is subject to change. Please check our website periodically for updates.

Services / On-Site Testing / Source Testing / Engine Testing Engine Testing Precision Engine Testing for Regulatory Compliance and Performance Assurance Ensure your engines meet EPA and state regulatory standards with expert testing, accurate emissions data, and trusted field-to-lab capabilities. Engine Testing Services Engines | Turbines | Enclosed Combustors | Heaters | Generators Tests Conducted NSPS JJJJ NESHAP ZZZZ NSPS KKKK NSPS OOOOb TAC 106.512 TAC 117 TAC NRSP NMED Periodic WY Portable Analyzer CO Portable Analyzer Green House Gases Methane Permit Specific Spot Checking Research and Development Test Methods EPA Reference Methods 1, 2, 3A, 4, 7E, 10, 19, 25A 320 ASTM D6348 & ASTM D6522 GPA 2261 State of Colorado Portable Analyzer Monitoring Protocol State of Wyoming Air Quality Division Portable Analyzer Monitoring Protocol WY DEQ Division of Air Quality FTIR Stack Testing Guidance Test Process Emissions Testing Compliance Strategy and Planning Creation and Submittal of Pre-Test Notifications Design of Custom Test Protocols FTIR Data Validation On-Site, Real-Time Results Electronic Report Hosting and 24/7 Portal Access ISNetworld, Veriforce and TPS Alert Compliant 6-3-1 Process Our keystone service offering — this process describes the weekly cadence of pre-testing communication during which we coordinate details, conduct research, and prepare protocols to ensure a successful testing experience. Learn More About the 6-3-1 Process Here's the rundown on our proven pre- to post-testing process that involves precise coordination and communication to ensure the best testing results. From start to finish, we stay in constant communication. Learn what happens at the major milestone stages of 6 weeks, 3 weeks and 1 week prior to testing. The 6-3-1 Process 6 Weeks Prior: Preparation Alliance will email test week details to pertinent parties to request information that is unknown and address questions about permit research that has been completed. We hold ourselves accountable to every last detail, because every detail matters. The following week we will prepare any testing notifications or protocols required by the regulatory agency(s) and continue our communication with pertinent parties. Expect our background work and 1:1 communications to continue until mid-way through the process when we will begin sharing details on how testing will be conducted. 3 Weeks Prior: Verification Successful stack testing takes a team approach. Getting the right information to the right people at the right time is our strength. Communicating what’s needed upfront saves time, improves quality and builds camaraderie, ensuring all parties feel connected and informed. At this stage, the full plan begins to come together - from the big picture to the small details. No guesses, no assumptions. We validate the facts and communicate them to ensure everyone involved understands exactly what’s needed, because no two stack tests are the same. 1 Week Prior: Confirmation One week prior to testing day, the Alliance Testing Technician will communicate directly with the customer site contact to confirm the meetup and kickoff schedule for the onsite testing. Additional emails with test week details will be sent to all pertinent parties to ensure there are no surprises. And, if there is a need to adjust to new information or emergent insights, we will adapt accordingly, keeping everyone informed along the way. OGI (Optical Gas Imaging) Alliance Technical Group offers industry-leading OGI services backed by a seasoned team, robust data systems, and a commitment to quality. Whether you operate upstream, midstream, or downstream, our nationwide team delivers high-performance leak detection where and when it matters most. OGI is a flexible solution ideal for diverse industrial sectors and applications: Upstream: well pads, offshore rigs, crude storage Midstream: pipelines, gas terminals, compressor stations Downstream: refineries, above-ground storage tanks Other Sectors: gas utilities, biogas plants, landfills, mining, semiconductor manufacturing OGI is also effective for detecting emissions from compressor rod packing systems, which are a common source of methane leaks in reciprocating engines. By visualizing and pinpointing these leaks in real time, operators can take corrective action before emissions exceed regulatory thresholds or impact equipment performance. Learn More About Our OGI Services Oil & Gas Labs Alliance delivers fast, flexible testing and analysis solutions for the oil and gas industry. We provide comprehensive sampling and analytical services across every stage of energy extraction, transportation, and product delivery. From field collection to advanced laboratory testing, our team ensures accurate, on-time results you can rely on. Learn More About Our Lab Services VIEW OUR ACCREDITATIONS “At Alliance, we pride ourselves on being the largest engine testing company in the U.S., backed by the most expansive network of mobile laboratories. Our deep bench of subject matter experts ensures unparalleled expertise in every project. Through advanced software and a full suite of services—including labs, consulting, LDAR, and OGI—we streamline testing and support the evolving needs of the Oil & Gas industry.” Mike O'Brien Vice President, Oil & Gas First name* Last name* Phone* Email* How can we help?* Talk to an Expert Learn more about Engine Testing Back to All Services