The Coast Guard Inspections and Compliance Directorate has issued MSIB 20-20 to inform mariners of the proper procure for performing a VHF radio check.
10/14/2016: Amendments to VHF maritime radio channel numbering scheme
The Coast Guard Navigation Center announced that the International Telecommunications Union has amended the VHF maritime radio channel numbering scheme which will affect 18 channels used in the U.S.