RUNWAY TRANSITION- a.  Conventional STARs/SIDs. The portion of a  STAR/SID that serves a particular runway or  runways at an airport.  b.  RNAV STARs/SIDs. Defines a path(s) from  the common route to the final point(s) on a STAR. For  a SID, the common route that serves a particular  runway or runways at an airport.  RUNWAY USE PROGRAM- A noise abatement  runway selection plan designed to enhance noise  abatement efforts with regard to airport communities  for arriving and departing aircraft. These plans are  developed into runway use programs and apply to all  turbojet aircraft 12,500 pounds or heavier; turbojet  aircraft less than 12,500 pounds are included only if  the airport proprietor determines that the aircraft  creates a noise problem. Runway use programs are  coordinated with FAA offices, and safety criteria  used in these programs are developed by the Office of  Flight Operations. Runway use programs are  b.  Informal Runway Use Program- An approved  noise abatement program which does not require a  Letter of Understanding, and participation in the  program is voluntary for aircraft operators/pilots.  a.  Formal Runway Use Program- An approved  noise abatement program which is defined and  acknowledged in a Letter of Understanding between  Flight Operations, Air Traffic Service, the airport  proprietor, and the users. Once established, participa- tion in the program is mandatory for aircraft operators  and pilots as provided for in 14 CFR Section 91.129.  administered by the Air Traffic Service as “Formal”  or “Informal” programs.  RUNWAY VISUAL RANGE (RVR)- (See VISIBILITY.)  RwyCC- (See RUNWAY CONDITION CODES.)  RwyCR- (See RUNWAY CONDITION REPORT.)  8/15/19 1/30/20  Pilot/Controller Glossary Pilot/Controller Glossary  PCG R-8 