§ 176.502 § 176.502 Certificate of Inspection: Conditions of validity. To maintain a valid Certificate of Inspection, you must complete your annual inspection within the periods specified in § 176.500(b)(1) and your Certificate of Inspection must be endorsed. [USCG-1999-4976, 65 FR 6508, Feb. 9, 2000]
46 CFR §176.502
46 CFR Part 176
TL;DR
§ 176.502 § 176.502 Certificate of Inspection: Conditions of validity.