R&A : Royal and Ancient Golf Club of St Andrews.

  RCA : Racecourse Association.

  RCD : Residual Current Device.

  REACH Regulation : Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation.

  RFI : Request for Information.

  RFID : Radio Frequency Identifrication.

  RFL : Rugby Football League, formed in 1895.

  RFP : Request for Proposal.

  RFQ : Request for Quotation.

  RFT : Request for Tender.

  RGR : Relative Growth Rate.

  RIDDOR : Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013.

  ROI : Return On Investment.

  ROLO : Register of Land Based Operatives.

  ROPS : Roll-Over Protective Structures.

  RPE : Respiratory Protective Equipment.

  RPR : Regenerating Perennial Ryegrass.

  RQF : Regulated Qualifications Framework, for England and Northern Ireland.

  RTU : Ready To Use.

  RTV : Rough Terrain Vehicle.