CFR›Title 49›Subtitle B›Chapter III›49 CFR Part 350 Citation49 CFR Part 350ContainsSubparts A–DCorpusDaily eCFRDisplayed edition2026-07-02Last updated2026-07-02 PART 350—MOTOR CARRIER SAFETY ASSISTANCE PROGRAM (MCSAP) AND HIGH PRIORITY PROGRAM Subparts A Subpart A—General Sections 350.101–350.105 B Subpart B—MCSAP Administration Sections 350.201–350.231 C Subpart C—MCSAP-Required Compatibility Review Sections 350.301–350.309 D Subpart D—High Priority Program Sections 350.401–350.417 Authority49 U.S.C. 504, 13902, 31101, 31102, 31104, 31106, 31108, 31136, 31141, 31161, 31310, 31311, 31502; secs. 5106 and 5107, Pub. L. 114-94, 129 Stat. 1312, 1530; and 49 CFR 1.87.Source85 FR 37796, June 24, 2020, unless otherwise noted. Previous 325 Part 325—Compliance with Interstate Motor Carrier Noise Emission Standards Next 360 Part 360—Fees for Motor Carrier Registration and Insurance