33 C.F.R. § 150.850 How long must a declaration of inspection form be kept?
Title 33 - Navigation and Navigable Waters
The licensee must keep signed copies of the declaration of inspection forms required by §150.430 for one month from the date of signature.
Title 33: Navigation and Navigable Waters
PART 150—DEEPWATER PORTS: OPERATIONS
Subpart I—Reports and Records
Records
§ 150.850 How long must a declaration of inspection form be kept?

