Regulations last checked for updates: May 04, 2025

Title 33 - Navigation and Navigable Waters last revised: Apr 29, 2025
All TitlesTitle 33Chapter IPart 174Subpart B - Subpart B—Numbering System Requirements
View all text of Subpart B [§ 174.11 - § 174.31]
§ 174.27 - Duration of certificate of number.

A certificate of number must not be valid for more than 3 years.

authority: 46 U.S.C. 6101 and 12302; DHS Delegation No. 00170.1, Revision No. 01.4
source: CGD 72-54R, 37 FR 21402, Oct. 7, 1972, unless otherwise noted.
cite as: 33 CFR 174.27
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