RADIO LICENSE U.S. users are not required to hold a radio license for a PLB. Other national administrations may require the PLB user to be licensed, for further advice check with your dealer or contact your national communications licensing authority. OVERVIEW OF USER REGISTRATION The PLB’s unique identifier must be registered with the national authority indicated in the white area on the rear of the PLB. Complete the user registration form and return it to the address indicated on the form. Some countries (including USA and UK) will send the registered user a DECAL label which you are obliged to fit to the rear of the PLB as ‘proof of registration’. Please use the online link in the above right to go to www.noaa.gov for more information.