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Subpart A—General19

Subpart B—Preparation of Hazardous Materials for Transportation22

Subpart C—Definitions, Classification and Packaging for Class 118

Subpart D—Definitions Classification, Packing Group Assignments and Exceptions for Hazardous Materials Other Than Class 1 and Class 726

Subpart E—Non-bulk Packaging for Hazardous Materials Other Than Class 1 and Class 763

Subpart F—Bulk Packaging for Hazardous Materials Other Than Class 1 and Class 79

Subpart G—Gases; Preparation and Packaging36

Subpart I—Class 7 (Radioactive) Materials47

Regulationcurrent

49 CFR 173.431

Activity limits for Type A and Type B packages.

Current as of 2026-08-18 Government source

eCFR editorial compilationAuthoritative but unofficial

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(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.#

(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.#