one. This is the technique of last resort in most cases, since most database operations are optimized when using set based analysis instead of the RBAR method. RBCI – (i) Radio Based Combat Identification RBI (i) Reserve Bank of India (i) Runs batted In RBOC – (a/i) Regional Bell Operating Company ("Baby Bell") RC RC – see entry RCA (i) Radio Corporation of America Root Cause Analysis Royal Canadian Artillery Royal City Avenue (famous entertainment zone in Thailand) RCAF – (i) Royal Canadian Air Force RCAR – (a) Research Council for Automobile Repairs ("are-car") RCC – (i) Rescue Co-ordination Centre RCCO – (i) Royal Canadian College of Organists RCHA – (i) Royal Canadian Horse Artillery (regiment) RCMP – (i) Royal Canadian Mounted Police RCRA – (a) Resource Conservation and Recovery Act ("reck-ra" or "rick-ra") RCS (i) Radar Cross-Section Reaction Control System Revision Control System RCT (i) Randomized Controlled Trial Robotically Controlled Telescope Rugby club toulonnais (French, "Toulon Rugby Club") RCZ – (i) Rear Combat Zone RD R&D – (i) Research & Development RD – Radio Disney RDA (i) Research, Development, and Acquisition Recommended Daily Allowance (Nutrition) RDD – (i) Radiological Dispersion Device RDDL – (a/i) Resource Directory Description Language ("riddle") RDECOM – (p) (U.S. Army) Research, Development and Engineering Command RDM – (i) Remotely Delivered/Deliverable Mine RDO (i) Rapid, Decisive Operation(s) Regular Day Off Remote Data Objects RDS (i) Amazon Relational Database Service (i) Remote Desktop Services (Microsoft service) (i) Réseau des sports (French, "Sports Network" — Canadian French-language TV channel) (i) Respiratory distress syndrome (i) Royal Dublin Society (see also RDS Arena, a stadium on the grounds often called "the RDS") RDT – (i) Remote Digital Terminal RDTE or RDT&E – (i) Research, Development, Test, and Evaluation RDV – (i) Remote Detection Vehicle RE Re – (s) Rhenium RE – (i) Requirements Engineering RE – (s) Royal Engineers REACH – (p) Registration, Evaluation, Authorisation and Restriction of Chemical Substances REACT – (a) Remote Electronically Activated Control Technology REAM – (a) Retired Educators Association of Minnesota RECCE – (a) Reconnaissance REEF – (a) Reef Environmental Education Foundation REM – (i/a) Rapid Eye Movement (sleep phase) – Rosicrucian Egyptian Museum REME – (a) Royal Electrical and Mechanical Engineers RERC – (i) Rehabilitation Engineering Research Center RES – (i) Radiation Exposure Status – (p) Reserve RESNA – (a) Rehabilitation Engineering and Assistive Technology Society of North America REU – (s) Réunion (ISO