Pipeline Corrosion Fighters Get NACE SP0502 Standard Boost
Published Date: 4/24/2026
Rule
Summary
Starting January 1, 2027, pipeline operators must follow the updated NACE SP0502 standard to better detect and prevent pipeline corrosion. This change helps keep the public safe, cuts down on confusing rules, and makes compliance easier for companies. If anyone has concerns, they can comment by June 23, 2026, but otherwise, the new rules kick in smoothly with no extra costs expected.
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Analyzed Economic Effects
5 provisions identified: 4 benefits, 1 costs, 0 mixed.
Pipeline operators must use NACE SP0502-2025
Starting January 1, 2027, pipeline operators must follow the updated industry standard NACE SP0502-2025 (revised April 28, 2025) as incorporated into 49 CFR parts 192 and 195. PHMSA updated references in specific sections (for example, Sec. 192.7 and Sec. 195.3) so operators are required to apply the 2025 edition instead of the 2010 edition.
Regulation aims to maintain or improve public safety
PHMSA says adopting NACE SP0502-2025 will maintain or improve public safety by better detecting and preventing pipeline corrosion, addressing safety risks, and mitigating latent vulnerabilities. The agency states the updated standard enhances safety through innovations in equipment design, testing, and operational practices.
Rule is expected to reduce compliance burdens
PHMSA says the update will prevent regulatory confusion and reduce compliance burdens by aligning federal rules with the newer industry standard, which most operators already use. The agency also states it expects no significant costs for affected operators and that total costs to the regulated community will be less than zero.
May support reliable, affordable natural gas supply
PHMSA states the updated standard will increase national pipeline transportation capacity and improve pipeline operators' ability to provide abundant, reliable, affordable natural gas for residential, commercial, and industrial demand. The agency also says the rule is not expected to have a significant adverse effect on energy supply or use.
Updated standard made available to the public
PHMSA states the incorporated NACE SP0502-2025 standard is available to the public (for example via https://ibr.ansi.org/Standards/nace.aspx) in accordance with the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011. Interested parties can obtain the material from that site or through publisher contact information listed in Sec. 192.7 and Sec. 195.3.
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