Auth dot number update requirements

Skill x3fleetsafety/skills/skills/auth-dot-number-update-requirements

Open-source Agent Skills for DOT / FMCSA compliance. Drop in any AI coding agent (Claude Code, Cursor, Cowork) so it knows trucking regulations like a fleet safety pro.

Install

npx -y skills add x3fleetsafety/skills --skill auth-dot-number-update-requirements

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Use this skill to understand when to update your USDOT number registration (MCS-150). Covers triggers, frequency, and consequences of late updates.

SKILL.md

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DOT Number + MCS-150 Update Requirements

Per § 390.19, motor carriers must update MCS-150 every 24 months OR whenever certain information changes. Failure can result in revocation.

Required update triggers (any of these)

Every 24 months (biennial update)
Carrier name change
Address change
Number of power units changes
Number of drivers changes
Type of operation changes
Operating authority changes
Owner/officer changes
Hazmat carrier changes

When to update

Biennial: 24-month anniversary of last update
Immediate: any of the trigger events

What's updated

Carrier identification
Operations data
Vehicle counts
Driver counts
Hazmat status
Insurance status
Officer information

How to update

USDOT/MC Online (preferred): fmcsa.dot.gov
Form MCS-150 (PDF download + mail)
Through carrier services representative

Consequences of failure

Initial: warning letter
Continued: registration deactivation
Severe: revocation of operating authority
Restart: must apply for reinstatement

Common errors

Update missed by 1-3 months
Update made but data incorrect
Multiple operations not consolidated
Officer changes not reported

Carrier oversight

Compass tracks MCS-150 update dates
Reminder 90 days before 24-month deadline
Alert when triggering event occurs
Audit-quality documentation

CFR citations

49 CFR § 390.19

How Compass surfaces this

Searchable in Compass Ask. Runs against carrier fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.

Built by X3 Compass

The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=auth-dot-number-update-requirements

X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.

This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills