{"operation":"document","citation":"PI-81-0114","title":"Pipeline Safety Interpretation PI-81-0114","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1981-09-04","effective_on":null,"summary":"PI-81-0114 concerning 192.323.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-81-0114.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-81-0114.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-81-0114","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1981/g81-09-04_Anderson_192.323-nlmx.pdf","body":"<<<PAGE 1>>>\n\nPI-81-0114\nSeptember 4, 1981\nMr. Mike Anderson\nMechanical Engineer\nIntermountain Gas Company\n555 South Cole Road\nP.O. Box 7698\nBoise, Idaho 83767\nDear Mr. Anderson:\nThank you for your letter of August 20, 1981 asking whether a building may be constructed over a cased natural gas\nmain.\nThe Federal safety standards for natural gas pipelines in 49 CFR Part 192 do not prohibit the operation of a cased main\nor other gas pipeline underneath a building. Therefore, as long as there is no State of local restriction, an operator of a\ngas pipeline may construct a building over it, and since Part 192 does not apply to persons other than operators, such\npersons may construct a building over a gas pipeline absent any State or local restriction.\nThe regulations you refer to would not apply to the situation of a building being constructed over a cased main. Section\n192.323, “Casing,” is a construction requirement that applies when a transmission line or main is being installed with a\ncasing under an existing railroad or highway. Also, section 192.361 applies to service lines, not mains, and like section\n192.323, it applies at the time the pipeline is under construction.\nOf course, an operator who has a pipeline over which a building is being constructed must, as required by section\n192.613, take appropriate action in response to any changes in class location, corrosion control measures, or other\nunusual operating or maintenance conditions that the building would create.\nSincerely,\nOriginal Sign By\nMelvin A. Judah\nActing Associate Director for\nPipeline Safety Regulation\nMaterials Transportation Bureau\n\n<<<PAGE 2>>>\n\nIntermountain Gas Company\n555 South Cole Road\nP.O. Box 7608\nBoise, Idaho 83707\nAugust 20, 1981\nDepartment of Transportation\n400 7th Street, S.W.\nWashington, D.C. 20590\nRE: Desired Interpretation\nDear Sir:\nWe have presently a buried 4” steel coated and wrapped natural gas main that is cased in 6” steel and has a\nMAOP of 60psig (not a transmission pipeline).\nCan a building be constructed over this cased main?\nOur finding from CFR 192.361 and 192.323 is that it would be permitted with proper venting and maintenance\nprocedures.\nYour opinion on this matter would be appreciated.\nBest Regards\nMike Anderson\nMechanical Engineer.","truncated":false,"body_characters":2268}