{"operation":"document","citation":"49 CFR 173.431","title":"Activity limits for Type A and Type B packages.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Except for LSA material and SCO, a Type A package may not contain a quantity of Class 7 (radioactive) materials greater than A1 for special form Class 7 (radioactive) material or A2 for normal form Class 7 (radioactive) material as listed in § 173.435, or, for Class 7 (radioactive) materials not","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-173-431.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-173-431.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-173-431","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-173.431","body":"(a) Except for LSA material and SCO, a Type A package may not contain a quantity of Class 7 (radioactive) materials greater than A1 for special form Class 7 (radioactive) material or A2 for normal form Class 7 (radioactive) material as listed in § 173.435, or, for Class 7 (radioactive) materials not listed in § 173.435, as determined in accordance with § 173.433.\n\n(b) The limits on activity contained in a Type B(U) or Type B(M) package are those prescribed in §§ 173.416 and 173.417, or in the applicable approval certificate under § 173.471, § 173.472 or § 173.473.\n\n[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended at 69 FR 3677, Jan. 26, 2004]","truncated":false,"body_characters":657}