§FMCSR.com
Current textSource: eCFR

§ 366.6 Cancellation or change.

Current wording, effective January 17, 2017.

eCFR (current) ↗
What changedOct. 1, 2016 wording → Jan. 17, 2017 wording (current)+226 added−102 removedHide

Link(a) toA andesignation amendmentmay publishedbe atcanceled 78or FRchanged 52648only by a new designation made by the motor carrier, Aug.broker, 23or freight forwarder, 2013or by the process agent or company filing a blanket designation in accordance with § 366.
Link5. toHowever, where a delaymotor publishedcarrier, broker or freight forwarder's USDOT Number is inactive for at 80least FR1 63702year, Oct.designation 21,is 2015no longer required and may be canceled without making another designation.
Link(b) toA anchange amendmentto publisheda atdesignation, 80such FRas 63706name, Oct.address, 21or contact information, 2015must be reported to FMCSA within 30 days of the change.
Link(c) toWhenever a delaymotor publishedcarrier, atbroker 81or FRfreight 49553forwarder changes it name, Julyaddress, 28or contact information, 2016it must report the change to its process agents and/or the company making a blanket designation on its behalf in accordance with § 366.5 within 30 days of the change.
A(d) designationWhenever maya beprocess canceledagent and/or changedcompany onlymaking by a newblanket designation excepton that,behalf whereof a motor carrier, broker, or brokerfreight ceasesforwarder toterminates beits subjectcontract or relationship with the entity, it should report the termination to §FMCSA 366within 30 days of the termination.4 inIf wholeprocess agents and/or inblanket partagents fordo 1not year,keep designationtheir isinformation noup longerto requireddate, andFMCSA may bewithdraw canceledits withoutapproval makingof anothertheir designationauthority to make process agent designations with the Agency.
[5580 FR 1119763706, MarOct. 2721, 1990.2015]
Effective RedesignatedDate atNote:
At 6182 FR 547075303, OctJan. 2117, 1996;2017, 62§ FR366.6 49940was suspended, Septeffective Jan. 2414, 1997]2017.

49 CFR § 366.6 — Cancellation or change.. Text current through October 15, 2026. This wording effective January 17, 2017 to present. Source: eCFR (current), https://www.ecfr.gov/current/title-49/section-366.6. Retrieved from FMCSR.com, https://fmcsr.com/reg/366.6, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) A designation may be canceled or changed only by a new designation made by the motor carrier, broker, or freight forwarder, or by the process agent or company filing a blanket designation in accordance with § 366.5. However, where a motor carrier, broker or freight forwarder's USDOT Number is inactive for at least 1 year, designation is no longer required and may be canceled without making another designation.

(b) A change to a designation, such as name, address, or contact information, must be reported to FMCSA within 30 days of the change.

(c) Whenever a motor carrier, broker or freight forwarder changes it name, address, or contact information, it must report the change to its process agents and/or the company making a blanket designation on its behalf in accordance with § 366.5 within 30 days of the change.

(d) Whenever a process agent and/or company making a blanket designation on behalf of a motor carrier, broker, or freight forwarder terminates its contract or relationship with the entity, it should report the termination to FMCSA within 30 days of the termination. If process agents and/or blanket agents do not keep their information up to date, FMCSA may withdraw its approval of their authority to make process agent designations with the Agency.

[80 FR 63706, Oct. 21, 2015]

Effective Date Note:

At 82 FR 5303, Jan. 17, 2017, § 366.6 was suspended, effective Jan. 14, 2017.

Amendment history

4 distinct wordings on file since Oct. 1, 1998
  1. Jan. 17, 2017 → presenteCFR, day-precisediff vs. previousviewing
    [80 FR 63706, Oct. 21, 2015]
  2. Oct. 1, 2016 → Jan. 17, 2017annual edition 2016diff vs. previous
    [55 FR 11197, Mar. 27, 1990. Redesignated at 61 FR 54707, Oct. 21, 1996; 62 FR 49940, Sept. 24, 1997]
  3. Oct. 1, 2013 → Oct. 1, 2016annual editions 2013–2015diff vs. previous
    [55 FR 11197, Mar. 27, 1990. Redesignated at 61 FR 54707, Oct. 21, 1996; 62 FR 49940, Sept. 24, 1997]
  4. Oct. 1, 1998 → Oct. 1, 2013annual editions 1998–2012
    [55 FR 11197, Mar. 27, 1990. Redesignated at 61 FR 54707, Oct. 21, 1996; 62 FR 49940, Sept. 24, 1997]

A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section. Set a case date in the header to read any earlier wording.