From the AUXILIARY MANUAL with updates

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
Operational Auxiliarist (aka – AUXOP) Member Status
AWWAmerica’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
CANCitzen’s Action Network
CAP Civil Air Patrol
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-5PCommandant for Prevention Policy
CG-5PCDirector 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
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)
DAC Diversity Advisory Council (Deleted)
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-CDirector 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-QDirector of Incident Management and Preparedness
DIR-RDirector of Response
DIR-SDirector of Strategic Planning
DIR-T Director of Training
DIR-UDirector 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
DMOADesignated 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 or Diversity
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
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
FACAFederal 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
IDHSIndependent 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
LDACLeadership and Diversity Advisory Council
LE Law Enforcement
LEDET Law Enforcement Detachment
LLC Legislative Liaison Committee
LLOLegislative 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
MARPOL International Convention for the Prevention of Pollution from Ships
MARS Military Affiliate Radio System
MARSEC Maritime Security Condition
MBRIDMember 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”