Section 387.407 - Surety bonds and certificates of insurance(a) The limits of liability under §387.405 may be provided by aggregation under the procedures at 49 CFR part 387, subpart C.(b) Each policy of insurance used in connection with a certificate of insurance filed with the FMCSA shall be amended by attachment of the appropriate endorsement prescribed by the FMCSA (or the Department of Transportation, where applicable).55 FR 11201, 3/27/1990. Redesignated at 61 FR 54710, 10/21/1996, as amended at 62 FR 49942, 9/24/1997