49 C.F.R. § 173.413 Requirements for Type B packages.
Title 49 - Transportation
Except as provided in §173.416, each Type B(U) or Type B(M) package must be designed and constructed to meet the applicable requirements specified in 10 CFR part 71.
Title 49: Transportation
PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS
Subpart I—Class 7 (Radioactive) Materials
§ 173.413 Requirements for Type B packages.