# 523.303 Contract clauses.

(a) Insert the clause at 552.223-70, Hazardous Substances, in solicitations and contracts for packaged items subject to the Federal Hazardous Substances Act and the Hazardous Materials Transportation Act.

(b) Insert the clause at 552.223-71, Nonconforming Hazardous Materials, in solicitations and contracts for supplies that contain hazardous materials.

(c) Insert the clause at 552.223-73, Preservation, Packaging, Packing, Marking, and Labeling of Hazardous Materials (HAZMAT) for Shipments, in solicitations and contracts for packaged items containing hazardous materials.