StacksVerified U.S. regulatory reference

10 CFR §71.61

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A Type B package containing more than 10 5A2 must be designed so that its undamaged containment system can withstand an external water pressure of 2 MPa (290 psi) for a period of not less than 1 hour without collapse, buckling, or inleakage of water.