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01
Apr
Summer Uniforms
April 1, 2025
12:00 am
Time to put the winter uniforms away and time to roll up the ODU sleeves and wear Trops
01
Nov
Winter Uniforms
November 1, 2025
12:00 am
Time to start optionally wear winter uniforms, ODU sleeves are rolled down.
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Auxiliary Training
Useful Links
These links are found for quick access to 5NR and National Links
USCG Auxiliary Acronyms
From the AUXILIARY MANUAL with updates
| ACRONYM | DEFINITION |
| A/C | Aircraft |
| AAC | Auxiliary Aviation Coordinator |
| AAM | Auxiliary Achievement Medal |
| AAPP | Academy Admissions Partner Program |
| ABC | America’s Boating Course |
| ABYC | American Boat and Yacht Council |
| AC&I | Acquisition, Construction, and Improvement |
| ACFT | Aircraft |
| ACLOC | Auxiliary Commandant Letter of Commendation |
| ACM | Auxiliary Commendation Medal |
| ACN | Advanced Coastal Navigation |
| ACO | Authorized Certifying Officer |
| ACOE | Army Corps of Engineers |
| ACP | Area Contingency Plan |
| ADA | Americans with Disabilities Act |
| ADCON | Administrative Control |
| ADFSO | Assistant District Flight Safety Officer |
| ADM | Admiral (4-star, USCG / USN / USPHS) |
| ADR | Alternative Dispute Resolution |
| ADSM | Auxiliary Distinguished Service Medal |
| ADSO | Assistant District Staff Officer |
| ADSW-AC | Active Duty Special Work in Support of Active Component |
| AFC-01 | Allotment Fund Control Code for Military Personnel Pay |
| AFC-08 | Allotment Fund Control Code for Civilian Personnel Pay |
| AFC-20 | Allotment Fund Control Code for Permanent Change of Station Travel |
| AFC-30 | Allotment Fund Control Code for Operating and Maintenance |
| AFC-30E | Allotment Fund Control Code for Energy |
| AFC-56 | Allotment Fund Control Code for Training |
| AFRAS | Association for Rescue at Sea |
| AIM | Academy Introduction Mission or Administrative Investigations Manual |
| AIRS | Auxiliary Internet Resources Site |
| AIS | Automated Information System; Automatic Identification System |
| ALAC | Auxiliary Logical Access Credential |
| ALOM | Auxiliary Legion of Merit |
| AMLOC | Auxiliary Mid-Level Officer Course |
| AMOS | Auxiliary Mission Objectives System |
| AMS | Area Maritime Security |
| ANACO | Assistant National Commodore |
| ANACO-CC | Assistant National Commodore Chief Counsel |
| ANSC | Auxiliary National Supply Center |
| ANT | Aids to Navigation Team |
| AO | Area of Operations |
| AOPS | Abstract of Operations or Assistant Operations Officer |
| AOR | Area of Responsibility |
| AP | Approval Pending Member Status |
| APC | Administrative Procedures Course |
| ASC | Auxiliary Sector Coordinator |
| ASOC | Auxiliary Senior Officer Course |
| AT/FP | Anti-Terrorism and Force Protection |
| AtoN | Aids to Navigation |
| AtoNIS | Aids to Navigation Information System |
| AUC | Auxiliary Unit Coordinator |
| AUXACN | Auxiliary Advanced Coastal Navigation |
| AUXCEN | Auxiliary Center |
| AUXCOM | Auxiliary Boat Commander or Auxiliary Communication Specialty Course |
| AUXDATA | Auxiliary Database |
| AUXFAC | Auxiliary Facility |
| AUXFS | Auxiliary Food Service |
| AUXLAM | Auxiliary Leadership and Management Course |
| AUXLEA | Auxiliary Leadership Course |
| AUXLO | Auxiliary Liaison Officer (active duty unit liaison to local Auxiliary) |
| AUXMAN | Auxiliary Manual |
| AUXMIN | Auxiliary Administration Specialty Course |
| AUXMIS | Auxiliary Management Information System (see AUXDATA) |
| AUXNAV | Auxiliary Navigation Specialty Course |
| AUXOP | Operational Auxiliarist |
| AUXOY | Auxiliarist of the Year |
| AUXPAL | Auxiliary Personnel Allowance List |
| AUXPAT | Auxiliary Patrols Specialty Course |
| AUXPATCOM | Auxiliary Patrol Commander |
| AUXSAR | Auxiliary Search and Rescue Specialty Course |
| AUXSEA | Auxiliary Seamanship Specialty Course |
| AUXWEA | Auxiliary Weather Specialty Course |
| AV | Aid Verifier |
| AVM | Aviation Management |
| AVT | Aviation Training |
| AX | Operational Auxiliarist (aka – AUXOP) Member Status |
| AWW | America’s Waterway Watch |
| BC | Branch Chief, National Staff |
| BCM | Boat Crewmember |
| BCN | Basic Coastal Navigation |
| BCQP | Boat Crew Qualification Program |
| BED | Base Enrollment Date |
| BG | Brigadier General (1-star) |
| BGEN, BG | Brigadier General |
| BLA | Boating Law Administrator |
| BM | Boatswain’s Mate |
| BNM | Broadcast Notice to Mariners |
| BO/BTM PQS | Boarding Officer / Boarding Team Member Personnel Qualification Standard |
| BOAT/US | Boat Owners Association of the U.S. |
| BOCA | Boat Owners Council of America |
| BOSAF | Boating Safety Correspondence Course |
| BQ | Basically Qualified Member Status |
| BS&S | Boating Skills and Seamanship |
| BSAC | Boating Safety Advisory Council (NBSAC) |
| BSC | Boating Safety Circular |
| BUI | Boating Under the Influence |
| BWI | Boating While Intoxicated |
| C2 | Command and Control |
| C4I | Command, Control, Communications, Computers, and Intelligence |
| C4ISR | Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance |
| CAC | Common Access Card or Crisis Action Center |
| CAN | Citzen’s Action Network |
| CAP | Civil Air Patrol |
| CAPT | Captain (USCG / USN / USPHS) |
| CASCOR | Casualty Correct |
| CASREP | Casualty Report |
| CBN | Chemical, Biological, and Nuclear |
| CBP | U.S. Customs and Border Protection Agency |
| CBRN | Chemical, Biological, Radiological, or Nuclear |
| CCB | Configuration Control Board |
| CD | Counterdrug Operations |
| CDAR | Collateral Duty Addictions Representative |
| CDO | Command Duty Officer |
| CDR | Commander (USCG / USN / USPHS) |
| CEU | Civil Engineering Unit or Continuing Education Unit |
| CFC | Combined Federal Campaign |
| CFO | Chief Financial Officer |
| CFR | U.S. Code of Federal Regulation |
| CFVE | Commercial Fishing Vessel Examination |
| CFVS | Commercial Fishing Vessel Safety |
| CG-00 | Commandant, U.S. Coast Guard |
| CG-09 | Vice Commandant, U.S. Coast Guard |
| CG-1 | Assistant Commandant for Human Resources |
| CG-2 | Assistant Commandant for Intelligence and Criminal Investigations |
| CG-4 | Assistant Commandant for Engineering and Logistics |
| CG-5 | Assistant Commandant for Marine Safety, Security, and Stewardship |
| CG-5P | Commandant for Prevention Policy |
| CG-5PC | Director of Inspections and Compliance |
| CG-6 | Assistant Commandant for Command, Control, Communications, Computers, and Information Technology |
| CG-7 | Assistant Commandant for Capability |
| CG-8 | Assistant Commandant for Resources |
| CGAP | Coast Guard Acquisition Procedures |
| CGAR | Coast Guard Acquisition Regulation |
| CGAUX – CRC | Civil Rights Coordinator (Auxiliarist) |
| CGAuxA, Inc. | Coast Guard Auxiliary Association, Incorporated |
| CG-DCMS | Deputy Commandant for Mission Support |
| CG-DCO | Deputy Commandant for Operations |
| CGDF | Coast Guard Dining Facility |
| CGDN+ | Coast Guard Data Network Plus |
| CGES | Coast Guard Exchange System |
| CGHQ | Coast Guard Headquarters (Washington, DC) |
| CGI | Coast Guard Institute (Oklahoma City, OK) |
| CGIS | Coast Guard Investigative Service |
| CGMA | Coast Guard Mutual Assistance |
| CGPC | Coast Guard Personnel Command (Shirlington, VA) |
| CGRC | Coast Guard Recruiting Command |
| CHDIRAUX | Chief Director of Auxiliary |
| CIO | Chief Information Officer |
| CIP | Common Intelligence Picture; Container Inspection Program |
| CISM | Critical Incident Stress Management |
| CM | Configuration Management or Communications |
| CNO | Chief of Naval Operations |
| CO/OIC | Commanding Officer/Officer-in-Charge |
| COCO | Chief of Contracting Officer |
| COL | Colonel |
| COLREG | International Regulations for Preventing Collisions at Sea |
| COMCEN | Communications Center |
| COMDTINST | Commandant Instruction or Manual |
| COMDTNOTE | Commandant Notice |
| COMDTPUB | Commandant Publication |
| COMMCEN | Communications Center |
| COMMS | Communications |
| COMO | Commodore |
| CONOPS | Concept of Operations |
| CONUS | Continental United States |
| COOP | Continuity of Operations Plan |
| COP | Common Operating Picture |
| COTP | Captain-of-the-Port |
| COTR | Contracting Officer’s Technical Representative |
| CPC | Commandant’s Performance Challenge |
| CPO | Chief Petty Officer (USCG, USN) |
| CPRL | Contingency Personnel Requirements List |
| CPT | Captain (USA, USAF, USMC) |
| CQA | Commandant’s Quality Award |
| CR | Continuing Resolution |
| CRC | Civil Rights Coordinator |
| CRM | Crew Resource Management |
| CRO | Civil Rights Officer |
| CS | Communications Services |
| CVS | Commercial Vessel Safety or Contractor Verification System |
| CWO | Chief Warrant Officer |
| DA | Direct Access Information System (aka – PeopleSoft) |
| DANTES | Defense Activity for Non-Traditional Education Support |
| DAPA | Drug and Alcohol Program Administration |
| DAPI | Drug and Alcohol Program Inspector |
| DBIDS | Defense Biometrics Identification System |
| DCAPT | District Captain |
| DCDR | Division Commander |
| DCO | District Commodore |
| DCOS | District Chief of Staff |
| DDC | District Directorate Chief |
| DEERS | Defense Enrollment Eligibility Reporting System |
| DES | Digital Encryption Standard |
| DFSO | District Flight Safety Officer |
| DGPS | Differential Global Positioning System |
| DHS | Department of Homeland Security |
| DI | Direct Informational |
| DIR | Director of Government and Public Affairs |
| DIR-A | Directorate Chief of Marketing and Public Affairs |
| DIR-B | Director of RBS Outreach |
| DIR-C | Director of Computer Software and Systems |
| DIR-D | Deputy Director, Auxiliary National Staff |
| DIR-E | Director of Public Education |
| DIR-I | Director of International Affairs |
| DIR-M | Director of Performance Measurement |
| DIR-P | Director of Prevention |
| DIR-Q | Director of Incident Management and Preparedness |
| DIR-R | Director of Response |
| DIR-S | Director of Strategic Planning |
| DIR-T | Director of Training |
| DIR-U | Director of User Services and Support |
| DIR-V | Director of Vessel Examinations |
| DIRAUX | Director of Auxiliary (District or Region) |
| DIST | District |
| DIV | Division |
| DMA | Defense Mapping Agency |
| DMDC | Defense Manpower Data Center |
| DMOA | Designated Medical Officer Advisor |
| DNACO | Deputy National Commodore |
| DO | Defense Operations or Direct Operational |
| DoD | Department of Defense |
| DOG | Deployable Operating Group |
| DOJ | U.S. Department of Justice |
| DOL | U.S. Department of Labor |
| DOS | Department of State |
| DOT | Department of Transportation |
| DPA | District Office Designator for Director of Auxiliary |
| DRMO | Defense Reutilization and Marketing Office |
| DSC | Digital Selective Calling |
| DSO | District Staff Officer |
| DTG | Date Time Group |
| DV | Distinguished Visitor |
| DVC | National Division Chief |
| DWO | Deck Watch Officer |
| EA | Executive Assistant |
| EAD | Extended Active Duty |
| EAP | Employee Assistance Program |
| EDF | Enlisted Dining Facilities |
| ELC | Engineering Logistics Center or Elected Leader’s Course |
| ELT | Emergency Locator Transmitter or Enforcement of Laws and Treaties |
| EMCON | Emission Control |
| EMI | Extra Military Instruction or Electro-Magnetic Interference |
| EMPLID | Employee ID Number also known as MBRID – Member ID Number |
| EMS | Emergency Medical Services |
| EMT | Emergency Medical Technician |
| ENS | Ensign (USCG, USN, USPHS) |
| EO | Engineer Officer |
| EOCT | End-of-Course Test |
| EOD | Entry on Duty |
| EPA | U.S. Environmental Protection Agency |
| EPIRB | Emergency Position Indicating Radio Beacon |
| E-QIP | Electronic Questionnaire for Investigations Processing |
| ESA | Endangered Species Act |
| ESD | Electronics Support Detachment |
| ESO | Educational Services Officer |
| ESU | Coast Guard Electronic Support Unit |
| ETA | Estimated Time of Arrival |
| ETD | Estimated Time of Departure |
| ETR | Estimated Time to Repair |
| EXCOM | District Executive Committee or Extended Communications |
| FAA | Federal Aviation Administration |
| FACA | Federal Advisory Committee Act |
| FAR | Family Advocacy Representative or Federal Acquisition Regulations |
| FAV | Favorable Determination for Personnel Security Investigation |
| FC | Flotilla Commander |
| FECA | Federal Employees Compensation Act |
| FEDEX | Federal Express |
| FEMA | Federal Emergency Management Agency |
| FINCEN | Finance Center |
| FIR | Field Intelligence Report |
| FLC | Flotilla Leadership Course |
| FLIR | Forward-Looking Infrared heat-imaging system |
| FMV | Fair Market Value |
| FN | Finance Staff Officer – Auxiliary |
| FOC | Final Operating Condition |
| FOIA | Freedom of Information Act |
| FOSC | Federal On-Scene Coordinator |
| FOUO | For Official Use Only |
| FPA | Family Program Administrator |
| FPCON | Force Protection Condition |
| FSO | Flotilla Staff Officer or Food Services Officer |
| FTR | Federal Travel Regulations |
| FWPCA | Federal Water Pollution Control Act |
| FWS | Fish and Wildlife Service |
| FY | Fiscal Year |
| G-A | Assistant Commandant for Acquisitions |
| GAR | Green-Amber-Red |
| GEN | General (4-star) |
| GIG | Global Information Grid |
| GMDSS | Global Maritime Distress and Safety System |
| GMT | Greenwich Mean Time (see ZULU) |
| GOV | Government Owned Vehicle |
| GP | General Purpose |
| GPO | Government Printing Office |
| GPS | Global Positioning System |
| GS | General Service Federal Employee Designation |
| GSA | General Services Administration |
| GTA | Government Transportation Account |
| GTR | Government Travel Request |
| GV | Government Vehicle |
| HARPAT | Harbor Patrol |
| HAZCOM | Hazardous Communication |
| HAZMAT | Hazardous Material |
| HAZWASTE | Hazardous Waste |
| HAZWOPR | Hazardous Waste Operator |
| HCPV/HIV | High Capacity Passenger Vessel/High Interest Vessel |
| HDC | Harbor Defense Command |
| HDCU | Harbor Defense Command Unit |
| HIPAA | Health Information Portability and Accountability Act |
| HITRON | Helicopter Interdiction Tactical Squadron |
| HIV | High Interest Vessel |
| HLS | Homeland Security |
| HS | Homeland Security |
| HSAS | Homeland Security Advisory System |
| HSC | Harbor Safety Committee |
| HSPD | Homeland Security Presidential Directive |
| HUMINT | Human Intelligence |
| HVA | High Value military Assets |
| IALA | International Association of Lighthouse Authorities |
| IAMSAR | International Aeronautical and Maritime Search and Rescue |
| I-AtoNIS | Integrated Aids to Navigation Information Systems |
| ICAO | International Civil Aviation Organization |
| ICC | Intelligence Coordination Center |
| ICE | U.S. Immigration and Customs Enforcement Agency |
| ICGS | Integrated Coast Guard Systems |
| ICS | Incident Command System |
| IDC | Instructor Development Course |
| IDHS | Independent Duty Health Services Technician |
| IDT | Inactive Duty for Training |
| IIP | International Ice Patrol |
| IMO | International Maritime Organization |
| IMPAC | International Merchant Purchase Authorization Card |
| IOETP | Initial Orientation and Entry Training Program |
| IP | Immediate Past Office (Except National Commodore) |
| IQ | Initially Qualified Member Status |
| IQC | Initial Qualification Code |
| IRIS | Incident Reporting Information System |
| IS | Information Services |
| ISAR | International Search and Rescue |
| ISC | Integrated Support Command |
| ISMS | Integrated Security Management System |
| ISO | International Standards Organization |
| IT | Instructor; Information Technology |
| JFTR | Joint Federal Travel Regulations |
| JHOC | Joint Harbor Operations Center |
| JIATF | Joint Interagency Task Force |
| JIC | Joint Information Center |
| JQR | Job Qualification Requirement |
| KO | Contracting Officer |
| L | Legal Affairs |
| LCDR | Lieutenant Commander (USCG, USN, USPHS) |
| LCP | Legislative Change Proposal |
| LE | Law Enforcement |
| LEDET | Law Enforcement Detachment |
| LLC | Legislative Liaison Committee |
| LLO | Legislative Liaison Officer |
| LM | Life Member |
| LMR | Living Marine Resource |
| LO | Liaison Officer or Logistics Officer |
| LOGREQ | Logistics Requirement |
| LORAN-C | Long-Range Aid to Navigation |
| LORSTA | Loran Station |
| LP | Legal/Parliamentarian |
| LSC | Legal Services Command |
| LT | Lieutenant (USCG, USN, USPHS) |
| LTCOL, LTC | Lieutenant Colonel (USA, USMC, USAF) |
| LTG | Lieutenant General (3-star) |
| LTGEN, LTG | Lieutenant General (USA, USMC, USAF) |
| LTJG | Lieutenant Junior Grade (USCG, USN, USPHS) |
| M&IE | Meals and Incidental Expenses |
| MA | Materials |
| MAJ | Major (USA, USMC, USAF) |
| MARPOL | International Convention for the Prevention of Pollution from Ships |
| MARS | Military Affiliate Radio System |
| MARSEC | Maritime Security Condition |
| MBRID | Member ID Number |
| MC&R | Maintenance, Repair, and Construction |
| MCM | Manual for Courts-Martial |
| MCPO | Master Chief Petty Officer (USCG, USN) |
| MDA | Maritime Domain Awareness |
| MDZ | Maritime Defense Zone |
| MEP | Marine Environmental Protection |
| MER | Marine Environmental Response |
| MG | Major General (2-star) |
| MGEN | Major General (USA, USMC, USAF) |
| MGIB | Montgomery G.I. Bill |
| MHLS | Maritime Homeland Security |
| MILSTRIP | Military Standard Requisitioning and Issue Procedure |
| MISHAP | Standard Report of Accident |
| MISLE | Marine Information for Safety and Law Enforcement data system |
| MJM | Military Justice Manual |
| MLE | Maritime Law Enforcement |
| MLEM | Maritime Law Enforcement Manual |
| MMD | Merchant Mariner Document |
| MMPA | Marine Mammal Protection Act |
| MOA | Memorandum of Agreement |
| MOU | Memorandum of Understanding |
| MOM | Maritime Observation Mission |
| MS | Member Services, Marine Safety |
| MSC | Marine Safety Council |
| MSD | Marine Sanitation Device or Marine Safety Detachment |
| MSFCMA | Magnuson-Stevens Fisheries Conservation and Management Act |
| MSN | Marine Safety Network |
| MSS | Marine Safety and Security |
| MSSEP | Marine Safety, Security, and Environmental Protection |
| MSST | Maritime Safety and Security Team |
| MT | Member Training or Mandated Training |
| MTC | Meritorious Team Commendation |
| MTS | Marine Transportation System |
| MTSA | Marine Transportation Security Act |
| MWR | Morale, Well-Being, and Recreation |
| NAC | National Association of Commodores or National Agency Check |
| NACI | National Agency Check and Inquiries |
| NACLC | National Agency Check and Law and Credit |
| NACO | National Commodore |
| NACON | National Conference |
| NAFA | Non-Appropriated Fund Activity |
| NAPM | National Area Planning Meeting |
| NASBLA | National Association of State Boating Law Administrators |
| NAVRULS | Navigation Rules |
| NBF | National Boating Federation |
| NBSAC | National Boating Safety Advisory Council |
| NESU | Naval Engineering Support Unit |
| NEXCOM | National Executive Committee |
| NIMS | National Incident Management System |
| NIPCO | Immediate Past National Commodore |
| NJP | Non-Judicial Punishment |
| NLT | No Later Than |
| NMLBS | National Motor Lifeboat School |
| NOAA | National Oceanic and Atmospheric Administration |
| NOK | Next of Kin |
| NORTHCOM | Northern Command |
| NRC | National Response Center (Washington, DC) |
| NRP | National Response Plan |
| NRT | National Response Team |
| NSBC | National Safe Boating Council |
| NSBW | National Safe Boating Week |
| NSC | National Safety Council |
| NSF | National Strike Force |
| NSFCC | National Strike Force Coordination Center |
| NSN | National Stock Number |
| NSS | National Search and Rescue Supplement |
| N-TRAIN | National Training Conference |
| NTSB | National Transportation Safety Board |
| NVDC | National Vessel Documentation Center |
| NVIC | Navigation and Vessel Inspection Circular |
| NWS | National Weather Service (NOAA-Dept. of Commerce) |
| OAS | Organizational Assessment Survey |
| OCMI | Officer-in-Charge, Marine Inspections |
| OCONUS | Outside of the Continental United States |
| OCS | Officer Candidate School |
| ODU | Operational Dress Uniform |
| OE | Coast Guard Operating Expenses Appropriation |
| OER | Officer Evaluation Report |
| OFI | Office of Federal Investigations |
| OGE | Office of Government Ethics |
| OIA | Order Issuing Authority |
| OIC | Officer-in-Charge |
| OJT | On-the-Job Training |
| OMB | U.S. Office of Management and Budget |
| OMMP | Occupational Medical Monitoring Program |
| OMS | Operating Materials and Supplies or Operations and Marine Safety |
| OMSEP | Occupational Medical Surveillance and Evaluation Program |
| OOD | Officer of the Deck/Day |
| OP | Operations |
| OPA | Oil Pollution Act |
| OPAREA | Operational Area |
| OPC | Offshore Patrol Cutter |
| OPCEN | Operations Center |
| OPCOM | Operating Committee |
| OPCON | Operational Control |
| OPFAC | Coast Guard Operational Facility (e.g., station, cutter, support center) |
| OPFOR | Opposition Forces |
| OPLAN | Operation Plan |
| OPM | U.S. Office of Personnel Management |
| OPORD | Operation Order |
| OPS | Operations Officer |
| OPSEC | Operations Security |
| ORM | Operational Risk Management |
| OS | Operational Support |
| OSC | Operations Systems Center (Martinsburg, WV) |
| OSHA | Occupational Safety and Health Administration |
| OTC | Officer in Tactical Command |
| OTO | Operations Training Officer |
| OWT | On-the-Water Training |
| P | Past Officer (when used before officer title acronym) |
| PA | Privacy Act or Public Affairs |
| PAL | Personnel Allowance List |
| PAO | Public Affairs Officer |
| PATCOM | Patrol Commander |
| PAWSS | Ports and Waterways Safety System |
| PB | Publications |
| PCS | Permanent Change of Station |
| PDCA | Past Division Commanders Association |
| PDD | Presidential Decision Directive |
| PDR | Personnel Data Record |
| PE | Public Education |
| PERSRU | Personnel Reporting Unit |
| PFD | Personal Flotation Device |
| PI | Personnel Inspection |
| PIE | Partnership in Education |
| PII | Personally Identifiable Information |
| PIR | Priority Intelligence Requirements |
| PIV | Personal Identification Verification |
| PKI | Public Key Infrastructure |
| PMS | Preventive/Planned Maintenance System |
| PO | Petty Officer (USCG, USN) |
| POE | Projected Operation Environment |
| POLREP | Pollution Report Message |
| POM | Plaque of Merit |
| POMS | Patrol Order Management System |
| POSH | Prevention of Sexual Harassment |
| POTUS | President of the United States |
| POV | Privately Owned Vehicle |
| PPC | Pay and Personnel Center |
| PPE | Personal Protective Equipment |
| PQS | Personnel Qualification Standard |
| PS | Personnel Services or Port Security Specialist |
| PSI | Personnel Security Investigation |
| PSQ | Personnel Security Questionnaire |
| PSS | Port Safety and Security |
| PSU | Port Security Unit |
| PWC | Personal Watercraft |
| PWCS | Ports, Waterways, and Coastal Security |
| PWO | Personal Watercraft Operator |
| PWSA | Ports and Waterway Safety Act |
| PY | Promotion Year |
| QC | Quality Control |
| QE | Qualification Examiner |
| QEB | Qualification Examining Board |
| QM | Quartermaster (USN, USPHS) |
| R&D | Research and Development |
| RADM | Rear Admiral, Upper-Half (2-star, USCG / USN / USPHS) |
| RAPIDS | Real-time Automated Personnel Identification System |
| RBS | Recreational Boating Safety |
| RBSV | Recreational Boating Safety Visitor |
| RBSVP | Recreational Boating Safety Visitation Program |
| RDML | Rear Admiral, Lower-Half (1-star, USCG / USN / USPHS) |
| REC | Coast Guard Regional Examination Center |
| REP | Representative |
| RET | Retired |
| REWK | Required Workshop, Not Met |
| REYR | Required Yearly, Not Met |
| RFO | Ready for Operation |
| RIK | Rations-in-Kind |
| RMS | Readiness Management System |
| ROE | Rules of Engagement |
| RP | Responsible Party or Resources Proposal |
| SAC | Special Agreement Check |
| SAI | Small Arms Instructor |
| SAR | Search and Rescue |
| SAREX | SAR Exercise |
| SARMIS | Search and Rescue Mission Information System |
| SCPO | Senior Chief Petty Officer (USCG, USN) |
| SDB | Service Dress Blue Bravon |
| SECCEN | Coast Guard Security Center (Chesapeake, VA) |
| SELRES | Selected Reserve |
| SEPRAT | Separate Ration |
| SES | Senior Executive Service |
| SF | Safety Factor or Sailing Fundamentals |
| SHPT | Sexual Harassment Prevention Training |
| SILC DET | Shore Infrastructure Logistics Center Detachment |
| SIPRNET | Secret Internet Protocol Routing Network |
| SITREP | Situation Report |
| SK | Storekeeper |
| SLO | Auxiliary State Liaison |
| SMART | Self-contained Mobile Auxiliary Response Team |
| SMC | SAR Mission Coordinator |
| SN | Seaman (USCG, USN) |
| SO | Division Staff Officer |
| SOFA | Status of Forces Agreement |
| SOLAS | Safety of Life at Sea |
| SO-OP | Auxiliary Division Operations Officer |
| SOP | Standard Operating Procedure |
| SOQ | Sailor of the Quarter |
| SORN | System of Record Notice |
| SR | Secretary/Records (also Seaman Recruit) |
| SRA | Short-Range Aids to Navigation |
| SSBI | Single Scope Background Investigation |
| SSL | Standard Support Level |
| SSN | Social Security Number |
| STA | Station |
| STA OPS | Station Operations |
| STAN & RFO | Readiness and Standardization Program |
| STTR | Short-Term Resident Training Request |
| SWSIII | Standard Workstation Three |
| TACON | Tactical Control |
| TAD | Temporary Additional Duty |
| TBO | Time Between Overhauls (re – aircraft facilities) |
| TCOW | Telecommunications Watchstander |
| TCT | Team Coordination Training |
| TDY | Temporary Duty |
| THREATCON | Threat Condition |
| TISCOM | Telecommunications and Information Systems Command (Alexandria, VA) |
| TMT | Training Management Tool |
| TOI | Target of Interest |
| TONO | Travel Order Number |
| TPAX | Travel Preparation and Examination System |
| TQC | Training Quota Management Center |
| TRACEN | Training Center |
| TRADET | Training Detachment |
| TRATEAM | Training Team |
| TSA | Transportation Security Administration |
| TVS | Travel Voucher Statement |
| UAS | Unmanned Aircraft System |
| UCMJ | Uniform Code of Military Justice |
| UDC | Coast Guard Uniform Distribution Center (Woodbine, NJ) |
| UNFAV | Unfavorable (determination, especially in regards to PSI) |
| USA | United States Army |
| USACOE | United States Army Corps of Engineers |
| USAF | United States Air Force |
| USAFR | United States Air Force Reserve |
| USA-NG | United States Army – National Guard |
| USAR | United States Army Reserve |
| USBP | United States Border Patrol |
| USC | United States Code |
| USCA | United States Code Annotated |
| USCG | United States Coast Guard (also CG) |
| USCGA | United States Coast Guard Academy |
| USCGAUX | United States Coast Guard Auxiliary |
| USCGR | United States Coast Guard Reserve |
| USFWS | U.S. Fish and Wildlife Service |
| USMC | United States Marine Corps |
| USMCR | United States Marine Corps Reserve |
| USN | United States Navy |
| USNR | United States Navy Reserve |
| USPS | U.S. Power Squadrons |
| VADM | Vice Admiral (3-star, USCG / USN / USPHS) |
| VCDR | Division Vice Commander |
| VFC | Flotilla Vice Commander |
| VIP | Very Important Person |
| VNACO | National Vice Commodore |
| VSC | Vessel Safety Check |
| VTS | Vessel Traffic Services |
| WWM | Waterways Management |
| XO | Executive Officer |
| XPO | Executive Petty Officer |
| YN | Yeoman |
| ZULU | Time Zone “Alpha” designation, “Z” “Zulu time” |
