COMDTINST M16790.1G

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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

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ACRONYM DEFINITION

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

AUXCHEF Auxiliary Chef (Food Service Support)

AUXCOM Auxiliary Boat Commander or Auxiliary Communication Specialty Course

AUXDATA Auxiliary Database

AUXFAC Auxiliary Facility

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ACRONYM DEFINITION

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

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

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ACRONYM DEFINITION

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

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

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ACRONYM DEFINITION

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-54 Director of Prevention Policy

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)

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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)

DAC Diversity Advisory Council

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 Auxiliary National Directorate Chief

DIR-A Directorate Chief of Marketing and Public Affairs

DIR-B Directorate Chief of Boating

DIR-D National Deputy Directorate Chief

DIR-E Directorate Chief of Education

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ACRONYM DEFINITION

DIR-I Directorate Chief of Information and Communication Services

DIR-M Directorate Chief of Marine Safety and Environmental Protection

DIR-O Directorate Chief of Operations

DIR-P Directorate Chief of Personnel

DIR-T Directorate Chief of Training

DIR-V Directorate Chief of Vessel Examinations

DIRAUX Director of Auxiliary (District or Region)

DIST District

DIV Division

DLLR District Legislative Liaison Representative

DMA Defense Mapping Agency

DMDC Defense Manpower Data Center

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 or Diversity

DVC National Division Chief

DWO Deck Watch Officer

EA Executive Assistant

COMDTINST M16790.1G

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ACRONYM DEFINITION

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

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

FAR Family Advocacy Representative or Federal Acquisition Regulations

FAV Favorable Determination for Personnel Security Investigation

FC Flotilla Commander

COMDTINST M16790.1G

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ACRONYM DEFINITION

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

COMDTINST M16790.1G

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ACRONYM DEFINITION

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

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

COMDTINST M16790.1G

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ACRONYM DEFINITION

ICGS Integrated Coast Guard Systems

ICS Incident Command System

IDC Instructor Development Course

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

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ACRONYM DEFINITION

LLC Legislative Liaison Committee

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

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)

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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)

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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

SECCEN Coast Guard Security Center (Chesapeake, VA)

SELRES Selected Reserve

SEPRAT Separate Ration

SES Senior Executive Service

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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

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ACRONYM DEFINITION

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 Vice Commodore

VE Vessel Examiner, Vessel Examination

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‖