Do I need to reapply or can I reinstate?
Reinstate if your MC and USDOT are still issued (just inactive or revoked recently). Re-apply if your MC was fully revoked more than 30 days ago and the underlying cause is unrecoverable. Reinstatement preserves the original MC number; re-application issues a new MC and resets new-entrant status.
Reinstatement is the right path when the underlying revocation cause can be cured. Insurance lapses, BOC-3 lapses, MCS-150 lapses, and most missed-filing revocations are reinstatable: fix the underlying issue, file the cure, MC reactivates within 24-48 hours.
Re-application is required when the MC has been revoked long enough or for cause that cannot be cured. Examples: revocation more than 12 months in the past with no cure attempt; failure to maintain insurance for over 90 days running; unrecoverable safety-rating issues.
The trade-off matters. Re-application means a new $300 OP-1 fee, a new MC number (loses any history with shippers/brokers), and back-into new-entrant status with a fresh 18-month safety audit clock. Reinstatement keeps the existing MC and avoids the new-entrant audit.
When in doubt, the FMCSA L&I status page tells you whether reinstatement is still available. If the MC shows REVOKED but the carrier record is still in L&I, reinstatement is usually possible. If the MC shows REVOKED and the carrier record has been purged, re-application is required.