Federal News
States Challenge EPA Rescission of Emission Standards
March 20, 2026
Massachusetts Attorney General Andrea Joy Campbell and Michigan Attorney General Dana Nessel are leading a coalition of 24 states, the District of Columbia, the U.S. Virgin Islands, and multiple municipalities in a legal challenge against the U.S. Environmental Protection Agency's (EPA) attempt to rescind the 2009 Greenhouse Gas Endangerment Finding. This finding underpins federal motor vehicle greenhouse gas emission standards, and its rollback poses significant implications for environmental regulations affecting public health and infrastructure resilience.
- Procurement professionals should anticipate potential shifts or delays in federal environmental compliance requirements impacting vehicle emissions and related infrastructure projects.
- Contractors specializing in environmental consulting, emissions monitoring, and sustainability services may find increased demand as states seek to uphold or reinforce greenhouse gas standards.
- Agencies involved in infrastructure and public health projects should evaluate the legal and regulatory landscape for greenhouse gas emissions to align procurement strategies with evolving state-led initiatives.
- This legal challenge underscores the importance of monitoring federal-state dynamics in environmental policy that can affect contract scopes, compliance obligations, and funding priorities.
Attempting to erase the scientific consensus on greenhouse gas pollution puts our communities and our future at risk. Boston will continue to lead, protect public health, and hold the federal government accountable to the law as we work to reduce emissions and build a safer, more resilient city.
— Michelle Wu, Mayor of Boston
Climate change is real, and itβs already affecting our residents and our economy. When the federal government abandons the law and the science, everyday people suffer the consequences. As a mom, I want my boys β and every child in our state β to grow up breathing clean air and playing safely outdoors. Massachusetts has long led the way in protecting our communities from the dangers of greenhouse gas emissions and we are proud to stand up once again to lead this fight for our future.
— Andrea Joy Campbell, Attorney General of Massachusetts
The EPAβs unlawful and ill-conceived rescission of the greenhouse gas Endangerment Finding poses an immediate danger to Michiganβs environment and economy.
— Dana Nessel, Attorney General of Michigan
Agencies
Commonwealth of Massachusetts, Office of the Attorney General, Massachusetts, U.S. Environmental Protection Agency, District of Columbia, U.S. Virgin Islands