The Routing Policy System Working Group intends to provide standardization of protocols and recommended practices neccesary to support interoperability of the Internet Routing Registry (IRR). The IRR has been in use since 1995 based initially on the RIPE-181 policy language. The activities of the RPS Working Group shall include (1) defining a language, referred to as Routing Policy Specification Language(RPSL),for describing routing policy constraints, (2) defining a simple and robust distributed registry model for publishing routing policy constraints, and (3) providing a forum for the discussion of tools for analysing registered policy constraints, for checking global consistency, for generating router configurations, and for diagnosing operational routing problems.