All requests for changes to the manning required on the COI must be made to the OCMI who last issued the COI,unless the request is made in conjunction with an inspection for certification,in which case the request should be addressed to the OCMI conducting the inspection.
CFR 46-15.505-2013 history
2013CFR 46-15.505-2013 Shipping. Part15:Manning requirements. Section15.505:Changes in the certificate of inspection.