StacksVerified U.S. regulatory reference

23 CFR §490.805

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
All definitions in § 490.101 apply to this subpart. Unless otherwise specified in this subpart, the following definitions apply in this subpart: On-road mobile source means, within this part, emissions created by all projects and sources financed with funds from the 23 U.S.C. 149 CMAQ program.