49 CFR § 386.66 - Motions for rehearing or for modification.

---
identifier: "/us/cfr/t49/s386.66"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 386.66 - Motions for rehearing or for modification."
title_number: 49
title_name: "Transportation"
section_number: "386.66"
section_name: "Motions for rehearing or for modification."
chapter_name: "FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "FEDERAL MOTOR CARRIER SAFETY REGULATIONS"
part_number: "386"
part_name: "RULES OF PRACTICE FOR FMCSA PROCEEDINGS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "28 U.S.C. 2461 note; 49 U.S.C. 113, 1301 note, 31306a; 49 U.S.C. chapters 5, 51, 131-141, 145-149, 311, 313, and 315; and 49 CFR 1.81, 1.87."
regulatory_source: "50 FR 40306, Oct. 2, 1985, unless otherwise noted."
cfr_part: "386"
---


# 386.66 Motions for rehearing or for modification.

(a) No motion for rehearing or for modification of an order shall be entertained for 1 year following the date the Agency Decisionmaker's order goes into effect. After 1 year, any party may file a motion with the Agency Decisionmaker requesting a rehearing or modification of the order. The motion must contain the following:

(1) A copy of the order about which the change is requested;

(2) A statement of the changed circumstances justifying the request; and

(3) Copies of all evidence intended to be relied on by the party submitting the motion.

(b) Upon receipt of the motion, the Agency Decisionmaker may make a decision denying the motion or modifying the order in whole or in part. He/she may also, prior to making his/her decision, order such other proceedings under these rules as he/she deems necessary and may request additional information from the party making the motion.

[70 FR 28485, May 18, 2005, as amended at 89 FR 713, Jan. 5, 2024]