49 C.F.R. § 192.923 How is direct assessment used and for what threats?
Title 49 - Transportation
(a) General. An operator may use direct assessment either as a primary assessment method or as a supplement to the other assessment methods allowed under this subpart. An operator may only use direct assessment as the primary assessment method to address the identified threats of external corrosion (ECDA), internal corrosion (ICDA), and stress corrosion cracking (SCCDA). (b) Primary method. An operator using direct assessment as a primary assessment method must have a plan that complies with the requirements in— (1) ASME/ANSI B31.8S (incorporated by reference, see §192.7), section 6.4; NACE RP0502–2002 (incorporated by reference, see §192.7); and §192.925 if addressing external corrosion (ECDA). (2) ASME/ANSI B31.8S, section 6.4 and appendix B2, and §192.927 if addressing internal corrosion (ICDA). (3) ASME/ANSI B31.8S, appendix A3, and §192.929 if addressing stress corrosion cracking (SCCDA). (c) Supplemental method. An operator using direct assessment as a supplemental assessment method for any applicable threat must have a plan that follows the requirements for confirmatory direct assessment in §192.931.
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart O—Pipeline Integrity Management
§ 192.923 How is direct assessment used and for what threats?
