46 C.F.R. § 31.10-17a Certificate of Inspection: Conditions of validity.
Title 46 - Shipping
To maintain a valid Certificate of Inspection, you must complete your annual and periodic inspections within the periods specified in §31.10–17 (a) and (b) and your Certificate of Inspection must be endorsed. [USCG-1999–4976, 65 FR 6500, Feb. 9, 2000]
Title 46: Shipping
PART 31—INSPECTION AND CERTIFICATION
Subpart 31.10—Inspections
§ 31.10-17a Certificate of Inspection: Conditions of validity.