How Is Direct Assessment Used and for What Threats? [49 CFR 192.923]

(A)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 Chapter. An operator may only use direct assessment as the primary assessment method to address the identified threats of external corrosion (EC), internal corrosion (IC), and stress corrosion cracking (SCC). [49 CFR 192.923(a)]#

(B)B. Primary Method. An operator using direct assessment as a primary assessment method must have a plan that complies with the requirements in: [49 CFR 192.923(b)]#

(1)1. §3325 and ASME B31.8S (incorporated by reference, see §507), Section 6.4, and NACE SP0502 (incorporated by reference, see §507) if addressing external corrosion (EC). [49 CFR 192.923(b)(1)]#

(2)2. §3327 and NACE SO0206 (incorporated by reference, see §507), if addressing internal corrosion (IC). [49 CFR 192.923(b)(2)]#

(3)3. §3329 and NACE SP0204 (incorporated by reference, see §507 if addressing stress corrosion cracking (SCC). [49 CFR 192.923(b)(3)]#

(C)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 §3331. [49 CFR 192.923(c)]#

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.#

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, Pipeline Division, LR 30:1278 (June 2004), amended LR 38:121 (January 2012), LR 44:1043 (June 2018), LR 46:1599 (November 2020), LR 50:1258 (September 2024), amended by the Department of Conservation and Energy, Office of Enforcement, LR 51:1836 (November 2025).#