About Us
Driving Clean Mobility Forward since 1976
Mission
MECA provides information to promote the development and deployment of innovative powertrain solutions. We facilitate the establishment of strong and effective state, national, and international air quality policy that promotes public health, environmental quality, and industrial progress. As a non-profit trade association, we collaborate with industry leaders, policymakers, and stakeholders to drive sustainable transportation, improve air quality, and reduce the environmental impact of mobility worldwide.
Vision
MECA envisions a future where clean and efficient mobility technologies drive the global transition toward sustainable transportation and equipment, supporting global efforts to ensure cleaner air for future generations.
Our Members
As an international, non-profit association based in Washington, D.C., MECA’s members include leading global manufacturers of clean mobility components for engines and electrified propulsion technologies for hybrid, battery electric, and hydrogen powertrains for on-road and off-road engines, vehicles and equipment. MECA members commercialize components for all mobile source categories ranging from small handheld to large equipment powering locomotive and marine applications.
Value of MECA Membership
MECA provides a forum for the lawful exchange of technical information and standards development to encourage policies that are performance-based, fuel neutral and foster innovation.
- Represent the clean mobility industry to solve complex environmental challenges
- Provide credible and fact-based technical information to stakeholders and policy makers through publications and testimony on rules impacting MECA members
- Provide comprehensive summaries of the latest environmental regulations and policies to help our members make critical technology development and business decisions.
- MECA collaborates with air regulators, NGOs, and affiliated associations on technology demonstration, air quality and market analysis to ensure that the industry delivers science-based and credible information about the technologies being commercialized by our members.
- Build trusted representation with policy makers to grow the market for clean mobility technologies
- Arrange meetings with technical and regulatory experts relevant to the industry
Who We Are
MECA is an international non-profit association incorporated in Washington, D.C. It was formed in 1976 to provide solid technical information on emission control technology for motor vehicles. Today, MECA’s members include leading manufacturers of clean mobility components for engines and electrified propulsion technologies for hybrid, battery electric, and hydrogen powertrains that reduce the environmental impact of: 1) automobiles, trucks, and buses; 2) off-road vehicles; and 3) large engines for locomotive, marine and stationary applications.
MECA members include manufacturers of…

Economic and public health impacts of our industry
MECA estimates the economic contribution from clean mobility technologies in the U.S. represents hundreds of billions of dollars. The growth over the next decade will cover more diverse technologies and powertrains to decarbonize transportation through a systems approach that includes the cleanest engines, electric and hydrogen powertrains, complemented by low carbon fuels. The clean mobility industry continues to develop, optimize, and commercialize technologies in support of air quality and climate goals. In terms of employment, clean mobility suppliers account for over 137,000 jobs in North America. Clean technology suppliers have made significant investments in hydrogen and electric vehicle components, while continuing to commercialize technologies to reduce the health impact of light- and heavy-duty vehicles.
Estimated EPA health benefits for its latest Highway Vehicle Rules between 2027 and 2045
What We Do
Government Relations – Washington, DC to California and Around the World
MECA provides the clean mobility supplier industry with a credible and responsive presence in Washington, DC, Sacramento, CA and around the world. We ensure that the products supplied by our members are properly represented and understood. In parallel, MECA communicates the latest information about the relevant government policies to our members.
U.S. Regulatory and Transportation liaison:
MECA maintains close contact with technical experts and policy planners at the U.S. Environmental Protection Agency, Department of Transportation, Department of Energy, Department of Commerce and other federal government agencies concerned with environmental issues and regulations. MECA also serves on EPA and other Agency technology advisory committees.
State and local liaison:
Regional, state, and local air quality agencies play an important role in our nation’s efforts to clean up the air we breathe. MECA works closely with officials at the California Air Resources Board and other state and Regional Planning Organizations including the Ozone Transport Commission. MECA serves on state and local technical advisory committees.
Regulatory Reports and Comments:
MECA summarizes all major mobile source regulations into concise reports of the most relevant information contained in thousands of pages of regulatory text for our members. We also work with our members to develop formal comprehensive comments and industry positions on regulatory provisions with the goal to ensure rule effectiveness and market certainty.

Photo by Natalia FaLon: Pexels 21597652.

Market Studies, Technology Demonstration and Analysis
MECA undertakes and funds market studies and technology demonstration programs on issues of major importance to industry and air quality officials. For example, MECA conducts comprehensive test programs to demonstrate the capabilities of advanced clean mobility technologies to significantly reduce the environmental and climate impact from passenger cars, heavy-duty vehicles and nonroad equipment. MECA funds market and air quality studies with industry partners designed to inform science-based rules and regulations impacting mobile sources.
MECA publishes our results in publicly available reports and scientific papers for member and stakeholders.
International Activities
MECA supports effective international air quality programs, informing and briefing air quality officials on recent technological developments in the U.S. MECA sponsors and contributes to international technical conferences to support members’ global market opportunities, and keeps members apprised of regulatory developments throughout the world. MECA has affiliates in all major automotive regions including Europe (AECC), China (CVEC), India (ECMA) and Latin America (AFEEVAS).
MECA participates in the Informal Working Groups (IWG) of the UN Environmental Committee on Global Emission Regulations and the UNECE Working Party on Pollution and Energy in support of globally harmonized regulations. These international meetings work to harmonize transportation emission standards, facilitate the implementation of battery durability standards for electric vehicles and promote life-cycle methodologies.

Industry Relations
MECA maintains relationships with aligned national and international organizations. MECA has played an active role working with other industry and public interest groups to promote emission control effectiveness and electric and hydrogen technologies.
Public Information Services
MECA acts as a central information source for clean mobility technologies. MECA issues press releases and provides background, explanatory, and technical information for news stories and technical reports. We stay current on technology and regulatory developments for all mobile on-road and nonroad sectors.
Join MECA
Membership in MECA is open to all firms that develop or manufacture clean mobility components, batteries and fuel cells primarily for sale to motor vehicle and engine manufacturers. Special associate memberships are available to firms that are developing, but do not plan to manufacture, clean mobility technologies.
Our members represent manufacturers of:
- Exhaust emission controls (flow through and particulate filtering substrates, catalysts, packaging materials and systems design and exhaust systems manufacturing) for all fuels
- Exhaust reductant injectors and mixers
- Sensors critical for emission control/efficiency performance and OBD (e.g., oxygen, PM,
- NOx, NH3 and temperature sensors)
- Fuel injection and ignition technologies
- Crankcase, evaporative and refueling technologies
- Combustion efficiency technologies
- Transmissions for electric and hybrid propulsion
- Components for fuel cell stacks, hydrogen storage and fuel systems
- Battery materials and technologies
- Power electronics
- Electric motors, E-Axles and integrated drive units
- Thermal management strategies
- Other new clean mobility