MOTUS, from the record: what FMCSA's new registration system actually changes — and the MC-number rumor it doesn't contain

What MOTUS replaces, and when

MOTUS (Latin for "movement") is FMCSA's new online registration system. When fully rolled out it retires three generations of infrastructure at once: URS for new applications, the registration components of MCMIS, and the Licensing & Insurance system built in 1994. The rollout is phased: Phase I went live December 8, 2025 — for supporting companies only: BOC-3 blanket filers, insurance and surety filers, and transportation service providers. Phase II, planned for the second quarter of 2026, opens the system to all regulated entities — carriers, brokers, freight forwarders. (As we publish, FMCSA hasn't announced Phase II live; the notice's own schedule already has it running close.)

The real headline: identity verification for 800,000 existing registrants

The change that will actually touch every carrier isn't the interface — it's the front door. FMCSA partnered with IDEMIA in April 2025 for identity document capture and verification, and the notice states the agency "will verify the identity of all new applicants, as well as the approximately 800,000 existing registrants when users access the new system." The mechanics: open a verification session on a smartphone or tablet, photograph a government-issued ID, and take a live selfie matched against it. This is FMCSA's structural answer to the registration-fraud wave — cloned MC numbers, hijacked USDOT identities — that enforcement has been chasing case-by-case. Practical advice: when your company first touches MOTUS, the person doing it should be an owner or officer whose ID matches the registration — not whoever happens to have the login.

What Phase II actually lets you do

The notice lists the carrier-side actions moving into MOTUS: applying for a USDOT number and operating authority; name and address changes; reinstating revoked authority; voluntarily suspending or revoking authority and marking a USDOT number out of business; reapplying after a new-entrant revocation; HMSP and cargo-tank renewals; and the biennial update. The paper-form layer dissolves with it: the MCS-150 family and the OP-1 series become guided fields inside the system rather than documents you file (the Mexico-domiciled OP-1(MX) is the one exception). Nothing in the list changes what you owe FMCSA or when — the notice is explicit that it operates under existing statutory authority. The obligations stay; the front door changes.

The MC-number rumor, checked against the record

Several compliance-service blogs state flatly that FMCSA stopped issuing MC numbers in late 2025 and that USDOT suffixes now replace them. Here is what the record supports: the 2013 URS final rule did plan to retire docket numbers (MC/FF/MX) in favor of USDOT-number-only identification — and that part of URS was suspended in January 2017 (82 FR 5292) and never implemented. The 2026 MOTUS notice doesn't announce the elimination either; it says FMCSA "expects to propose" the remaining URS provisions in a future rulemaking. Directionally, the MC number's retirement has been FMCSA's stated intent for over a decade — but as of this writing it is a plan awaiting a rule, not a done fact. If a future rule sets a date, that changes; until then, your MC number is still your MC number, and anyone selling you a "suffix migration service" is ahead of the law.

What to actually do

1. Nothing, yet — except hygiene. No carrier action is required until Phase II reaches you. The useful preparation is making sure your registration record (officers, addresses, email) is current, because identity verification will be matched against it.
2. Treat MOTUS-themed mail with suspicion. A new system rollout is a phishing season. FMCSA communicates from dot.gov; identity verification happens inside the registration system, never via a link in an unsolicited email demanding payment.
3. Watch the record, not the blogs. The two documents that matter next: FMCSA's Phase II go-live announcement, and any proposed rule on the remaining URS provisions — that's where the MC number's actual fate will be decided. We'll update this post when either lands.