This Recommended Practice (RP) provides guidelines for the repair and remanufacture of steel ball, check, gate, and plug valves normally used in pipeline applications, as defined by API Spec 6D. This RP covers repair or remanufacuturing of end user's (owner's) valves for continued service in the owner's production applications. Repaired or remanufactured valves may not meet API and/or the OEM standard requirements for new valves. Th eowner is repsonsible for th ecorrect application of valves repaired ore remanufactured per this document. It does not cover repair or remanufacture of used or surplus valves intended for resale. Furhermore, field repair is outside the scope of this document.