{"operation":"document","citation":"49 CFR 179.221-1","title":"-1 Individual specification requirements.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"In addition to § 179.220, the individual specification requirements are as follows:\n\nDOT specification Insulation Burstingpressure(psig) Minimumplatethickness (inches) Test pressure (psig) Bottomoutlet Bottomwashout Reference(179.221-***) 115A60ALW Yes 240 3⁄16 60 Optional. Optional 115A60W1 Yes 240","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-221-1.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-221-1.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-221-1","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.221-1","body":"In addition to § 179.220, the individual specification requirements are as follows:\n\nDOT specification Insulation Burstingpressure(psig) Minimumplatethickness (inches) Test pressure (psig) Bottomoutlet Bottomwashout Reference(179.221-***) 115A60ALW Yes 240 3⁄16 60 Optional. Optional 115A60W1 Yes 240 1⁄8 60 Optional Optional 1 115A60W6 Yes 240 1⁄8 60 Optional Optional 1\n\n[Amdt. 170-52, 61 FR 28681, June 5, 1996, as amended at 62 FR 51561, Oct. 1, 1997; 66 FR 45390, Aug. 28, 2001]","truncated":false,"body_characters":483}