Unlike some coating-only standards, NACE SP0198 addresses the interaction between coatings and CP. It warns against "shielding" where a disbonded coating blocks CP current, leading to localized corrosion (CUI).

You may also hear this referred to as (RP = Recommended Practice). In 2004, NACE changed its nomenclature from "RP" to "SP" (Standard Practice). Therefore, RP0198 and SP0198 refer to the same document, but SP0198 is the current designation.

If your facility handles steam, cryogenic fluids, or hot hydrocarbons, compliance with NACE SP0198 is not optional—it is an industry expectation.

The only safe and compliant source is the (formerly NACE International).