What does ORP stand for?

Objective Rallying Point (SAUS)

Objective Rally - or Rallying Point - Military

Objective Release Point - Army

Occiput Right Posterior Fetal position - Medicine (STED)

Occurrence Reporting Program (SAUS)

Office of Radiation Programs - Environmental Protection Agency

Office of Regulatory Programs - Federal Energy Administration - Obsolete

Office Relocation Project

Officer Requirements Plan (DNAB)

OFS - Orbital Flight System Retransmission Processor - NASA (GFGA)

OFS - Orbiter Functional Simulator Retransmission Processor - NASA

Ontario Reports Plus - Database - Canada (GDD)

Operational Readiness Panel

Operational Readiness Platform - Aviation (DA)

Operational Readiness Program (SAUS)

Opioid-Resistant Pain - Medicine (MELL)

Optical Response Poll (SAUS)

Optical Rotary Power

Optional Response Poll (VLIE)

Optional Retirement Program (SAUS)

Oranje River Project (SAUS)

Orapa - Botswana - Airport symbol - Obsolete (OAG)

Orbital Radiation Program (ACAE)

Orbital Rendezvous Procedure (AAG)

Ordinary, Reasonable, and Prudent - Legal term (BARN)

Organ Recovery Program (EA)

Ormara - Pakistan - Airport symbol (AD)

Outside Right Position - Dancing

Oxidation-Reduction Potential

Oxidation-Reduction Probe (SAUS)

Oxygen-Regulated Protein - Biochemistry

Phelps Community Library, Redbridge, Ontario - Library symbol - National Library of Canada (NLC)