{"operation":"document","citation":"HAR 6-77-146","title":"HAR 6-77-146 Test requirements for pipelines to operate at a hoop stress less than thirty","source_type":"regulation","agency":"Hawaii Public Utilities Commission","status":"current","official":true,"published_on":"1994-04-15","effective_on":"1994-09-03","summary":"percent of SMYS and at or above 100 p.s.i.g. Except for service lines and plastic pipelines, each segment of a pipeline that is to be operated at a hoop stress less than thirty percent of SMYS and at or above 100 p.s.i.g. must be tested in accordance with the following: (1) The pipeline operator mus","machine_formats":{"json":"https://regulus.evalyn.ai/document/hi-har-har-6-77-146.json","markdown":"https://regulus.evalyn.ai/document/hi-har-har-6-77-146.md"},"app_url":"https://regulus.evalyn.ai/document/hi-har-har-6-77-146","source_url":"https://puc.hawaii.gov/wp-content/uploads/2026/04/HAR-6-77-Transp-of-Gas-03-31-2026.pdf","body":"percent of SMYS and at or above 100 p.s.i.g. Except for service lines and plastic pipelines, each segment of a pipeline that is to be operated at a hoop stress less than thirty percent of SMYS and at or above 100 p.s.i.g. must be tested in accordance with the following: (1) The pipeline operator must use a test procedure that will ensure discovery of all potentially hazardous leaks in the segment being tested; (2) If, during the test, the segment is to be stressed to twenty percent or more of SMYS and natural gas, inert gas, or air is the test medium: (A) A leak test must be made at a pressure between 100 p.s.i.g. and the pressure required to produce a hoop stress of 20 percent of SMYS; or (B) The line must be walked to check for leaks while the hoop stress is held at approximately twenty percent of SMYS; (3) The pressure must be maintained at or above the test pressure for at least ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.507, October 1, one hour. [Eff 1990)","truncated":false,"body_characters":974}