{"operation":"document","citation":"PI-18-0018","title":"Praxair — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2019-02-25","effective_on":null,"summary":"PI-18-0018 response to Praxair concerning 192.225.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0018.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0018.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0018","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/pipeline/interpretations/70536/praxair-pi-18-0018-02-07-2019-part-192225.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nofTransportation\nPipeline and Hazardous Materials\nSafety Administration\n1200 New Jersey Avenue SE\nWashington DC 20590\nrm c 1 2019\nMr. John P. Maitino\nRegulatory Compliance Manager\nPraxair\n200 Strang Road\nLaPorte, TX 77571\nDear Mr. Maitino:\nIn an August 10, 2018, letter to the Pipeline and Hazardous Materials Safety Administration\n(PHMSA), you requested an interpretation of 49 Code of Federal Regulations (CFR) Part 192.\nSpecifically, you requested interpretation for welding requirements under§ 192.225.\nYou stated Praxair currently utilizes a Praxair-owned Welding Standard (W-40) that requires the\ncontract welder to meet certain requirements before they are qualified to weld on a Praxair\nHydrogen pipeline. You listed electrode and rod types and standards, stated the welding\nprocedure, and stated how welders would be qualified.\nYou seek an interpretation whether § 192.225 requires Praxair to have its own written welding\nprocedures or whether it is adequate to ensure that the qualified welder has compliant welding\nprocedures if the welder meets the standards you listed in your request.\nSection 192.225 is specific in its requirements. The section states:\n§ 192.225 Welding procedures.\n(a) Welding must be performed by a qualified welder or welding operator in accordance\nwith welding procedures qualified under section 5, section 12, Appendix A or Appendix\nB of API Std 1104 (incorporated by reference, see § 192. 7), or section IX of the ASME\nBoiler and Pressure Vessel Code (ASME BPVC) (incorporated by reference, see § 192. 7)\nto produce welds meeting the requirements of this subpart. The quality of the test welds\nused to qualify welding procedures must be determined by destructive testing in\naccordance with the applicable welding standard(s).\n(b) Each welding procedure must be recorded in detail, including the results of the\nqualifying tests. This record must be retained and followed whenever the procedure is\nused.\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR\nParts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts\npresented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to\nhelp the public understand how to comply with the regulations.\n\n<<<PAGE 2>>>\n\n2\nThe pipeline operator is required by§ 192.225(a) to require welding using welding procedures\nqualified under one of the specified standards for a qualified welder or welding operator. Also,§\n192.225(b) requires the pipeline operator to retain welding records and written welding\nprocedures. Therefore, at a minimum, it is Praxair's responsibility, as pipeline operator, to keep\nwelding written procedures and records.\nlfwe can be of further assistance, please contact Tewabe Asebe at 202-366-5523.\nSi~\nJohn ~ ///)\nDirector, Office of Standards\nand Rulemaking\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations\n(49 CPR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the\nspecific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and\nare provided to help the public understand how to comply with the regulations.\n\n<<<PAGE 3>>>\n\n200 Strang Road\nLaPorte, TX 7757]\nPhone- (281) 478-1944\nFIYCO Operations AIlS i C 2010 Fax- (281) 478-1937\nAugust 10, 2018\nAlan Mayberry\nAssociate Administrator for Pipeline Safety\nU.S. Department ofTransportation\nPipeline and Hazardous Materials Safety Administration\n1200 New Jersey Avenue, SE\nSecond Floor, East Building\nWashington, DC 20590\nRe: Request for Interpretation\nDear Sir:\nPraxair, respectfully submits this Request for Interpretation from the Pipeline and\nHazardous Materials Safety Administration (PHMSA) Office ofPipeline Safety pursuant\nto 49 C.F.R. 192.225.\nI. Background\nPraxair current utilizes a Praxair owned Welding Standard (W-40) that requires the\ncontract welder to meet the requirements noted below before they are qualified to weld on\na Praxair Hydrogen pipeline.\nExcerpts from Praxair W-40 \"Welding of Cross Country Pipelines in Hydrogen Service in\nCompliance with ASME B31.8\".\nSec. 2.0 Applicable Documents and Standards\nThe applicable design codes will be specified in the contract documents. Only US codes\nare listed below. Local codes and standards may be used, provided the Praxair Pressure\nVessel Consultant evaluates these codes and standards and provides written confirmation\nthat they are equivalent to the codes listed below.\n¯ MPS-103, High Strength Pipeline Welding Fittings for High Pressure Hydrogen Service\n¯ API Specification 5L, Specification for Line Pipe\n¯ API Standard 1104, Welding ofPipelines and Related Facilities\n¯ ASME B31 .8, Gas Transmission and Distribution Piping Systems\n¯ ASME B3 1.12, Hydrogen Piping and Pipelines\n\n<<<PAGE 4>>>\n\n200 Strang Road\nEzri,iPIL4k_AIRLaPorte, TX 77571\nPhone- (281) 478-1944\nHYCO Operations Fax- (281) 478-1937\n¯ ASME Code, Section IX- Welding and Brazing Qualifications\n¯ AWS Specifications:\n¯ AWS A5. 1, Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding\n¯ AWS A5.4, Specification for Stainless Steel Electrodes for Shielded Metal Arc Welding\n¯ AWS A5.5, Specification for Low-Alloy Steel Electrodes for Shielded Metal Arc\nWelding\n¯ AWS A5.9, Specification for Bare Stainless Steel Welding Electrodes and Rods\n¯ AWS A5.l 8, Specification for Carbon Steel Electrodes and Rods for Gas Shielded Arc\nWelding\n¯ DOT Title 49, Part 192- Transportation ofNatural and Other Gas by Pipeline:\nMinimum Safety Standards\n¯ NACE MR0175/ISO 15 156-1, General Principles for Selection of Cracking-Resistant\nMaterials\nSec. 4.1 Welding Procedure Qualification\nWeld Procedure Specifications (WPS) shall be qualified in accordance with API Standard\n1104 or ASME Code, Section IX. The Procedure Qualification Record (PQR) shall meet\nrequirements in Sections 6.5 and 6.6 in this Standard for hardness and for toughness,\nrespectively, or as defined in the construction specification. A WPS template is found in\nAttachment 1. This form or a form meeting all ASME requirements and also ofthis\nStandard shall be completed. The weld procedure shall be qualified before the start of\nconstruction. Ifstandard ASME formatted WPS are submitted, they shall include the line-\nup clamp information required in Section 6.3 ofthis Standard and time limit between\nroot and hot passes in Section 6.4. This information may be included as an addendum to\nthe WPS. Welding procedures shall be qualified by an independent testing laboratory or by\nPraxair at Praxair's option. The testing laboratory shall be employed and paid for by the\ncontractor and shall be approved by Praxair. WPSs and PQRs shall be submitted to\nPraxair for approval two weeks before the start ofany welding.\nSec. 4.2 Welder Qualification\nWelders shall be qualified by Praxair or a testing laboratory in accordance with API\nStandard 1104 or ASME Code, Section IX, as defined in the construction specification for\nthe qualified welding procedure. Limitations on welder qualifications shall also include the\nrequirements ofDOT Title 49, Part 192.229. A weld test report found in Attachment 2\nshall be transmitted to Praxair before the start ofthe construction. A report shall be\ncompleted for each welder and the applicable welding procedure followed. Welder\nqualifications shall be performed using mechanical destruction testing. The contractorshall\nprovide the necessary pipe for welder qualification. The testing laboratory shall be\nemployed and paid for by the contractor and shall be approved by Praxair.\n\n<<<PAGE 5>>>\n\nPRAKAIR\nHYCO Operations\n200 Strang Road\nLaPorte, TX 77571\nPhone- (281) 478-1944\nFax- (281) 478-1937\nII. Request for Interpretation\nWe believe the standard described above meets the requirements of49 C.F.R. § 192.225.\nBy this request, Praxair seeks interpretation from the Pipeline and Hazardous Materials\nSafety Administration (PHMSA) Office ofPipeline Safety as to whether § 192.225 requires\nthe operator (Praxair) to have its own written welding procedures or whether it is\nadequate to ensure that the qualified welder has compliant welding procedures..\nPraxair respectfully requests that the Pipeline and Hazardous Materials Safety\nAdministration (PHMSA) Office ofPipeline Safety issue an interpretation regarding this\nquestion so that we can ensure that Praxair is fully compliant.\nThank you for your attention to this matter. Please contact the under signed ifyou have\nany questions or require further information.\nSincerely yours,\nMaitino\nRegulatory Compliance Manager\n200 Strang Road\nLaPorte, TX 77571\nPhone: 281-478-1944\nEmail: john maitino@praxair.corn\ncc:","truncated":false,"body_characters":8997}