49 CFR 173.442(b): Accepting for transportation or transporting a package containing Class 7 (radioactive) material when the temperature of the accessible external surface of the loaded package exceeds 50 °C (122 °F) in other than an exclusive use shipment, or 85 °C (185 °F) in an exclusive use shipment
Audit factor: Hazardous Materials
Severity: acute
Automatic failure: no