33 C.F.R. § 174.27 Duration of certificate of number.
Title 33 - Navigation and Navigable Waters
A certificate of number must not be valid for more than 3 years.
Title 33: Navigation and Navigable Waters
PART 174—STATE NUMBERING AND CASUALTY REPORTING SYSTEMS
Subpart B—Numbering System Requirements
§ 174.27 Duration of certificate of number.
