{"operation":"document","citation":"49 CFR 178.270-10","title":"External design pressure.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"historical","official":true,"published_on":null,"effective_on":"2005-10-01","summary":"(a) Each portable tank not fitted with vacuum relief devices must be designed to withstand a positive external pressure differential of at least 0.4 bar (6 psig).\n\n(b) Each portable tank fitted with vacuum relief devices must be designed to withstand a positive external pressure differential not les","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-178-270-10.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-178-270-10.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-178-270-10","source_url":"https://www.govinfo.gov/app/details/CFR-2005-title49-vol2/CFR-2005-title49-vol2-sec178-270-10","body":"(a) Each portable tank not fitted with vacuum relief devices must be designed to withstand a positive external pressure differential of at least 0.4 bar (6 psig).\n\n(b) Each portable tank fitted with vacuum relief devices must be designed to withstand a positive external pressure differential not less than the set pressure of the vacuum relief device and in any case at least 0.21 bar (3 psig).\n\n[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981, as amended at 66 FR 45387, Aug. 28, 2001]","truncated":false,"body_characters":480}