Section 80.151 - Classification of operator licenses and endorsements(a) Commercial radio operator licenses issued by the Commission are classified in accordance with the Radio Regulations of the International Telecommunication Union.(b) The following licenses are issued by the Commission. The international classification of each license, if different from the license name, is given in parentheses. The listed alphanumeric designators are the codes by which the licenses are identified in the Commission's Universal Licensing System. (1) RR. Restricted Radiotelephone Operator Permit (radiotelephone operator's restricted certificate).(2) RL. Restricted Radiotelephone Operator Permit-Limited Use.(3) MP. Marine Radio Operator Permit (radiotelephone operator's restricted certificate).(4) PG. General Radiotelephone Operator License (radiotelephone operator's general certificate).(5) DO. GMDSS Radio Operator's License (General Operator's Certificate).(6) RG. Restricted GMDSS Radio Operator's License (Restricted Operator's Certificate).(7) DM. GMDSS Radio Maintainer's License.(8) DB. GMDSS Radio Operator/Maintainer License.(9) T3. Third Class Radiotelegraph Operator's Certificate (radiotelegraph operator's special certificate).(9) T-3. Third Class Radiotelegraph Operator's Certificate (radiotelegraph operator's special certificate). Beginning May 20, 2013, no applications for new Third Class Radiotelegraph Operator's Certificates will be accepted for filing.(10) T-2. Second Class Radiotelegraph Operator's Certificate. Beginning May 20, 2013, no applications for new Second Class Radiotelegraph Operator's Certificates will be accepted for filing.(11) T-1. First Class Radiotelegraph Operator's Certificate. Beginning May 20, 2013, no applications for new First Class Radiotelegraph Operator's Certificates will be accepted for filing.(12) T. Radiotelegraph Operator License.(c) The following license endorsements are affixed by the Commission to provide special authorizations or restrictions. Applicable licenses are given in parentheses. (1) Ship Radar endorsement (First Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, Radiotelegraph Operator License, General Radiotelephone Operator License).(2) Six Months Service endorsement (First Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, Radiotelegraph Operator License).(3) Restrictive endorsements; relating to physical disabilities, English language or literacy waivers, or other matters (all licenses).51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46962 , Aug. 7, 2003; 76 FR 67611 , Nov. 2, 2011; 78 FR 23155 , Apr. 18, 2013