49 CFR 552.10 : Transportation (§ 1.1 To Parts 1581-1699) — (Subchapter A To § 571.500) — Other Regulations Relating To Transportation (Continued) (Subchapter A To § 571.500) — National Highway Traffic Safety Administration, Department Of Transportation (Part 500 To § 571.500) — Petitions For Rulemaking, Defect, And Noncompliance Orders (§ 552.1 To § 552.15) — General (§ 552.1 To § 552.10) — Denial of petition.