Peter Heisler | Ridgeline Center for Law and Policy

Amicus Brief of Members of Congress in Suncor v. Boulder

by ridgelinecenter | Aug 3, 2026

This brief, filed in the Supreme Court on behalf of members of Congress as amici curiae, supports Boulder and Boulder County’s state tort law claims against Exxon and Suncor for damages from deceptive production, promotion, marketing, and sale of fossil fuels....

Amicus Brief of Law Scholars in Daimler v. CARB

by ridgelinecenter | Jun 9, 2026

This brief, filed in the U.S. District Court for the Eastern District of California on behalf of administrative and constitutional law scholars as amici curiae, explains why EPA’s decisions on California’s applications for waivers of preemption under Clean...

Amicus Brief of Law Scholars in California v. U.S.

by ridgelinecenter | Jan 16, 2026

This brief, filed in the U.S. District Court for the Northern District of California on behalf of administrative and constitutional law scholars as amici curiae, explains why EPA’s decisions on California’s applications for waivers of preemption under...

Comments on EPA Disapproval of California SIP Inclusion of Clean Truck Check

by ridgelinecenter | Sep 25, 2025

Comments submitted to EPA on behalf of CAELP, NRDC, and EDF opposing the agency’s proposed disapproval of California’s state plan submission including its heavy duty inspection/maintenance regulation (“Clean Truck Check”). Comments argue that...