What does OBS stand for?

Aubenas - France - Airport symbol (OAG)

Obesity - Medicine (DMAA)

Obligations (ROG)

O'Brien Energy Systems, Inc. - AMEX symbol (COMM)

O'Brien Environmental Energy (EFIS)

Obscurant

Obscure (ADA)

Observation (ROG)

Observation Balloon System (SAUS)

Observatory

Observe

Obsession Powerboats Inc., Shawano, WI - Manufacturer code for watercraft hull identification number (USCG)

Obsolescence (SAUS)

Obsolete (AAG)

Obstacle (AABC)

Obstetrical Service - Medicine (MAE)

Obstetrics - Medicine

Obstruction (WGA)

Obtains - Telegraphy (PCTE)

Ocean Bottom Seismometer - California - Seismograph station code, US Geological Survey - Closed (SEIS)

Ocean Bottom Station

Ocean Bottom Suspension (SAUS)

Office of Biological Service - Marine science (MSC)

Office of Biological Services - Education Resources Information Center (GIS)

Office of Boating Safety - Coast Guard

Official Bulletin Station - Amateur radio

Oita Broadcasting Service (SAUS)

Old Babylonian Sumerian (BJA)

Old Bailey's Sessions Papers - A publication (DLA)

Omnibearing Selector - Radio

Onboard Shuttle (ACAE)

On-Board Spares - Army

On-Board System - Navy (CAAL)

Online BookStore - Commercial firm

Online Business Systems (SAUS)

On-Line Business Systems, Inc. - Information service or system (IID)

Open-Back Stationary Press - Manufacturing term

Open Back Strike - Construction term (MIST)

Open Bidding Service (SAUS)

Open-Hearth Basic Steel

Opera Ballet School (DICI)

Operand Buffering System - Computer science (IAA)

Operational Bioinstrumentation System - NASA

Operational Biomedical Sensors (NASA)

Operational Biomedical Systems (KSC)

Optical Beam Scanner

Optical Beam Steering

Optical Burst Switching (XSAL)

Optimum Blending System (VLIE)

Orange Badge Scheme - Disabled parking permit - British

Orbital Bombardment System

Organic Brain Syndrome - Psychiatry

Organizational Breakdown Structure (SAUS)

Organization Breakdown Structure - Computer science

Organized Behavioral System (WDMC)

Oriental and Biblical Studies - A publication (BJA)

OSIS - Ocean Surveillance Information System Baseline System - Navy

Ottawa Board of Education, Library Services Centre (Software) - UTLAS symbol

Outlined Black Letters on One Side - Tire design

Output Buffer Storage (SAUS)

Output Buffer Store (SAUS)

Oxford Bibliographical Society (DGA)

Sidney Township Public Library, Batawa, Ontario - Library symbol - National Library of Canada (BIB)

Obscene - Legal term

Observer (London) - A publication (BRI)

Obstacle Light - Aviation (DA)

Obscene (SHCU)

Obscura (VRA)

Observation (MILB)

Obsolete (STED)

Obstruction - Baseball term (NDBD)