Welding Fittings in Pipelines: MSS SP-75 Gets a Safety Refresh
Published Date: 4/24/2026
Rule
Summary
Starting January 1, 2027, pipeline companies must follow the updated MSS SP-75 safety standards for welding fittings. This change helps keep pipelines safer, cuts down on confusing rules, and makes it easier for companies to comply. If anyone has concerns, they can speak up by June 23, 2026, but otherwise, the new rules kick in smoothly with no extra costs expected.
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Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Pipeline Safety Standard Updated
Starting January 1, 2027, the Department of Transportation requires pipeline companies to follow the updated MSS SP-75 (2025 edition) welding fittings standard. PHMSA says the update will maintain or improve public safety and align rules across operators.
Lower Compliance Burden For Operators
PHMSA incorporates MSS SP-75-2025 (published June 2025) into 49 CFR part 195 to replace MSS SP-75-2019; the agency states this will reduce regulatory confusion and reduce compliance burdens for pipeline operators, with expected minimal or negative net costs to the regulated community.
Comment Deadline and Early Compliance
Comments on this direct final rule must be submitted by June 23, 2026; the rule becomes effective January 1, 2027 unless adverse comments are received, and PHMSA authorizes compliance after June 23, 2026. If adverse comments are received, PHMSA will withdraw the rule and publish a proposed rule before January 1, 2027.
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