Computing

• Release to manufacturing (syn. Release to marketing) - a term used when software is ready for release

Marketing

• Return to manufacturer - of faulty goods
• Registered Trademark (^TM)

Radio and TV

• Radiodiffusion-Télévision du Mali: the primary radio and television network of ORTM, the Malian state broadcaster
• Radio Televisyen Malaysia
  Radio Televisyen Malaysia
  The Department of Broadcasting, Malaysia, DBA Radio Televisyen Malaysia , is a Malaysian state-owned public broadcaster. It owns and operates a number of radio and television stations in Malaysia, based in Kuala Lumpur...
  
  , a Malaysian state-owned public broadcaster
• Radio Thamesmead, defunct South-East London radio station later known as Time 106.8
  Time 106.8
  106.8 Time FM was a local commercial radio station located in the south-east London and north-west Kent area of England, which broadcast to Greenwich and Bexleyheath in London and Dartford and Gravesend in Kent on 106.8 FM, and ceased transmission in April 2009.-Background:The station started...
  
  

Transport

• Régie des Transports de Marseille, public transport authority and operator of the Marseille Metro
  Marseille Metro
  The Marseille metro serves the City of Marseille. It is a rubber-tyred metro derived from the technology developed by the RATP for Paris Metro and opened at the end of 1977...
  
  
• RTM, the IATA code for Rotterdam The Hague Airport

Other uses

• Read the manual, as a variant of RTFM
  RTFM
  RTFM is an initialism for the direction "Read The Fucking Manual". This instruction is sometimes given in response to a question when the person being asked believes that the question could be easily answered by reading the relevant user's manual or instructions...
  
  
• Remember The Milk
  Remember The Milk
  Remember the Milk is an application service provider for web-based task- and time-management. It allows users to manage tasks from computer as well as offline. It is being developed by an Australian/international team.- Features :...
  
  , an online/offline calendar and reminder system
• Representative town meeting
  Representative town meeting
  A representative town meeting is a form of municipal legislature particularly common in Massachusetts, New Hampshire, Connecticut and Vermont....
  
  , a form of municipal legislature used in Massachusetts, New Hampshire, Connecticut and Vermont
• Requirements traceability matrix, a traceability matrix
  Traceability matrix
  A traceability matrix is a document, usually in the form of a table, that correlates any two baselined documents that require a many to many relationship to determine the completeness of the relationship...
  
   used to analyze project requirements documents
• Resin transfer molding, a form of the transfer molding
  Transfer molding
  Transfer molding, like compression molding, is a process where the amount of molding material is measured and inserted before the molding takes place. The molding material is preheated and loaded into a chamber known as the pot...
  
   composite material process
• Right to Manage
  Right to Manage
  The United Kingdom Commonhold and Leasehold Reform Act 2002 provides a right for leaseholders to change the appointment of the management of their building to another provider, by setting up a special company to take over from the freeholder those rights of appointment of management of the...
  
  , a leaseholders right under United Kingdom law
• Robert Tappan Morris, Jr., creator of the Morris worm
• RTM Restaurant Group, former operators of the Arby's restaurant
• Remote Temperature Module, used in Commercial Automated Air Conditioning/Heating Systems to measure temperature of a space or outside air (OA)