50 CFR §600.1511
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Type-approval holders must notify NMFS Office of Law Enforcement (OLE) in writing no later than 2 days following modification to or replacement of any functional component or piece of their type-approved EMTU, EMTU-C, or MTU configuration, MCS, or bundle. If the changes are substantial, NMFS OLE will notify the type-approval holder in writing within 60 calendar days that an amended type-approval is required or that NMFS will initiate the type-approval revocation process.