{"operation":"document","citation":"49 CFR 179.100-16","title":"-16 Attachments.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Reinforcing pads must be used between external brackets and shells if the attachment welds exceed 6 linear inches of 1/4-inch fillet or equivalent weld per bracket or bracket leg. When reinforcing pads are used, they must not be less than one-fourth inch in thickness, have each corner rounded to","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-100-16.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-100-16.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-100-16","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.100-16","body":"(a) Reinforcing pads must be used between external brackets and shells if the attachment welds exceed 6 linear inches of 1/4-inch fillet or equivalent weld per bracket or bracket leg. When reinforcing pads are used, they must not be less than one-fourth inch in thickness, have each corner rounded to a 1-inch minimum radius, and be attached to the tank by continuous fillet welds except for venting provisions. The ultimate shear strength of the bracket-to-reinforcing pad weld must not exceed 85 percent of the ultimate shear strength of the reinforcing pad-to-tank weld.\n\n(b) Attachments not otherwise specified shall be applied by approved means.\n\n[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, and amended by Amdt. 179-10, 36 FR 21346, Nov. 6, 1971]","truncated":false,"body_characters":778}