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Recommended Practices

A set of specifications that are only less mandatory than NMRA Standards by virtue of their slightly less critical subject matter.  While the inclusion of features described by NMRA DCC Recommended Practices is optional in any given product, if a manufacturer chooses to include these feature(s) in a product, then the design must fully implement the feature as described in the pertinent RP in order to earn a Conformance Warrant. (NMRA DCC RP)