Industry Trade Associations

American Council of Engineering Companies (ACEC)
ACEC is the national organization devoted exclusively to the business and advocacy interests of engineering companies.


American Road and Transportation Builders Association (ARTBA)
ARTBA is the U.S. transportation construction industry’s representative in Washington, D.C. Its mission: advocating strong federal investment in the nation’s transportation infrastructure to meet public demand for a safe and efficient business transportation network.


Associated General Contractors of America (AGC)
AGC, the voice of the construction industry, is an organization of qualified construction contractors and industry related companies dedicated to skill, integrity, and responsibility. Operating in partnership with its Chapters, the association provides a full range of services satisfying the needs and concerns of its members, thereby improving the quality of construction and protecting the public interest.


Local Trade Associations

APTA – American Public Transportation Association
APTA is a leading force in advancing public transportation, with a mission to strengthen and improve public transportation. APTA serves and leads its diverse membership through advocacy, innovation and information sharing. APTA and its members and staff work to ensure that public transportation is available and accessible for all Americans in communities across the country.


AMPO – Association of Metropolitan Planning Organizations
AMPO is the transportation advocate for metropolitan regions and is committed to enhancing MPOs’ abilities to improve metropolitan transportation systems.


NARC – National Association of Regional Councils
NARC is a nonprofit membership organization serving the interests of regional councils and metropolitan planning organizations nationwide.


Non Governmental Trade Associations

Defenders of Wildlife (Defenders)
Defenders is dedicated to the protection of all native wild animals and plants in their natural communities. The group focuses on programs the accelerating rate of extinction of species and the associated loss of biological diversity, and habitat alteration and destruction.


National Trust for Historic Preservation (NTHP)
NTHP is a private, nonprofit membership organization dedicated to saving historic places and revitalizing America’s communities.


Surface Transportation Policy Project (STPP)
STPP is a non-profit, diverse, nationwide coalition working to ensure safer communities and smarter transportation choices that enhance the economy, improve public health, promote social equity, and protect the environment.


State Trade Associations

Association of Fish and Wildlife Agencies (AFWA)
The Association of Fish & Wildlife Agencies represents North America’s fish and wildlife agencies to advance sound, science-based management and conservation of fish and wildlife and their habitats in the public interest.


Environmental Council of the States (ECOS)
ECOS is the national non-profit, non-partisan association of state and territorial environmental agency leaders with a mission to improve the capability of state environmental agencies and their leaders to protect and improve human health and the environment of the United States of America.


National Conference of State Historic Preservation Officers (NCSHPO)
NCSHPO is the professional association of the State government officials who carry out the national historic preservation program as delegates of the Secretary of the Interior pursuant to the National Historic Preservation Act of 1966, as amended.


National Conference of State Legislators (NCSL)
NCSL is a bipartisan organization that serves the legislators and staffs of the nation’s 50 states, its commonwealths and territories. NCSL provides research, technical assistance and opportunities for policymakers to exchange ideas on the most pressing state issues. NCSL is an effective and respected advocate for the interests of state governments before Congress and federal agencies.


National Governors Association (NGA)
NGA is the bipartisan organization of the nation’s governors and promotes visionary state leadership, shares best practices and speaks with a unified voice on national policy.


State and Territorial Air Pollution Program
Administrators/Association of Local Air Pollution Control Officials (STAPPA/ALAPCO)

STAPPA/ALAPCO are two national associations of air pollution control agencies in the United States.