What does POR stand for?

Pacific Ocean Region

Parking Orbit Rendezvous - NASA (MCD)

Partido Obrero Revolucionario - Revolutionary Workers Party - Bolivia - Political party (PPW)

Partido Obrero Revolucionario - Revolutionary Workers Party - Argentina - Political party

Partido Obrero Revolucionario - Revolutionary Workers Party - Peru - Political party

Patent Office Reports - A publication (DLA)

Patrol Operations Report

Payable on Receipt - Business term

Pay on Return - Business term

Peak Overshoot Ratio (IAA)

Periodic Operation Report

Periphal Output Register (SAUS)

Peripheral Order Register (SAUS)

Personnel Occurrence Report - RAF - British

Physician of Record (DAVI)

Pilot Opinion Rating

Place of Receipt (MARI)

Planned Order Release

Plutonium Organic Recycle - Nuclear energy (NRCH)

Point of No Return (GOBB)

Point of Receive (SAUS)

Point of Resolution (NAKS)

Point of Return (SAUS)

Pola Resources Ltd. - Vancouver Stock Exchange symbol

Policy, Organisation (or Organization) and Rules (SAUS)

Pori - Finland - Airport symbol (OAG)

Portec, Inc. - NYSE symbol (SPSG)

Portion

Portland - Maine - Seismograph station code, US Geological Survey - Closed (SEIS)

Port of Refuge - Shipping

Por Trailer - NCIC trailer make code

Portrait

Portuguese - Language code (ETLW)

Portuguese

Poseyville & Owensville Railroad - Federal Railroad Administration identification code

Position of Responsibility (ADA)

Postocclusive Oscillatory Response (DB)

Post Office Return

Post Office Rifles - Military - British (ROG)

Power on Request (ACAE)

Power on Reset (ACAE)

Power-On Reset (AEBE)

Preparation of Overseas Replacement - Military

Preparation of Overseas Replacements - Military technology (DDF)

Preparation of Replacements for Oversea Movement - MTMC (TAG)

Press on Regardless - Automotive marathon

Price on Request

Prime contractor Organization (SAUS)

Problem-Oriented Record (SAUS)

Problem-Oriented Records - Medicine

Problem-Oriented Routine (IEEE)

Processing Overseas Replacement Training - Military (VNW)

Process-of-Record (AAEL)

Production Order Records (SAA)

Production Order Request (SAA)

Program of Requirements (EEVL)

Project Officers Report (MCD)

Propylene Oxide Rubber (SAUS)

Psychotherapy Outcome Research

Purchase Order Request

Porosity (AD)

Porous (SAUS)

Portage (BARN)

Portrait (RION)

Portuguese - MARC language code - Library of Congress (LCCP)

Public Opinion Research (AD)

Porifera (AD)

Porogi - Waterfall - Russian (AD)

Portland (AD)

Portsmouth Spartans - National Football League - 1930-33 (NFLA)

Portugal (AD)

Portuguese (AD)