What does OAS stand for?

Bristle Marine, Saint Petersburg, FL - Manufacturer code for watercraft hull identification number (USCG)

O-Acetylserine (thiol)-lyase - An enzyme

Oasis - Board on Geographic Names

Oasis - NCIC car model code

Oasis Residential - NYSE symbol (SPSG)

Obstacle Assessment Surface - Aviation (DA)

Occupational Aspiration Scale - Education

Occupied Areas Section - Military government

Offensive Air Support (MCD)

Offensive Attack System (DOMA)

Offensive Avionics System

Office Automation System (NASA)

Office for Advanced Studies (AAG)

Office of Administrative Systems - Department of Agriculture (GFGA)

Office of Advanced Studies (SAUS)

Office of Aircraft Services - Emergency Management (EMA)

Office of Airline Statistics - U.S. Department of Transportation (BARN)

Office of Appalachian Studies (SAUS)

Office of Oceanic and Atmospheric Services - National Oceanic and Atmospheric Administration (MSC)

Office of the Assistant for Study Support - Air Force

Office of the Assistant Secretary - Defense - Navy

Ohio Academy of Science (EARSL)

Oklahoma Academy of Science (BUAC)

Old Age and Survivors' Insurance (IAA)

Old Age Security - Income Security Programs (CGA)

Old-Age Security

Olley Air Service Ltd.

Oman Aviation Services Co. - ICAO designator (FAAC)

On Active Service

One-Address-System (SAUS)

One-to-All Scatter (VLIE)

Ontario Archaeological Association (SAUS)

Open-Health Acid Steel (SAUS)

Open-Hearth Acid Steel

Operational Announcing System (IAA)

Ophthalmic Anesthesia Society (SAUS)

Opiate Abstinence Syndrome - Medicine (MELL)

Optical Alignment Sights - NASA

Optical Array Spectrometer

Optical Augmentation System

Optics and Sensors - Program (MCD)

Option Adjusted Spread

Optoacoustic Spectrometry - Also, PAS

Optoacoustic Spectroscopy (SAUS)

Oracle Application Server - Computer science (VLIE)

Oral Allergy Syndrome - Medicine (DMAA)

Orbit Adjustment Subsystem - Advanced earth Observing Satellite (GIS)

Orbit Adjust Subsystem (SAUS)

Orbiter Aeroflight Simulator - NASA (NASA)

Orbiter Atmospheric Simulator - NASA (MCD)

Orbiter Avionia System (SAUS)

Orbiter Avionics System - NASA (NASA)

Orbitor Avionics Simulator - NASA

Order Allocation System (VLIE)

Order Automation System (TIMI)

Ordinary Ammunition Storage (SAUS)

Ordinary Ammunition Stowage (SAUS)

Oregon Aero SkyDancer - Air show performer (ASPC)

Organisation de l'Armee Secrete - Secret Army Organization - France (PD)

Organizational Accounting Structure (IAA)

Organization of American States (EA)

Organization of Arab Students in the USA and Canada (EA)

Oriental and African Studies

Origin-of-Assembly Sequence - Genetics

Orthopedic Appliance Service

Osmotically Active Substance - Medicine (DMAA)

Ostasiatisches Seminar der Universitaet Zuerich - East Asian Seminar of the University of Zurich (APS)

Other Active Military Service (DNAB)

Other Approved Studies (ADA)

Output Amplitude Stability

Oxygen Activated Sludge (DICI)

Secret Army Organisation - Algeria (BUAC)