Home › CFR › Title 48 › Part 823 › §823.303-7048 CFR §823.303-70 — Contract clause.Verified against eCFR.gov as of November 12, 2026 ↗View official text on eCFR.gov ↗Copy linkContracting officers shall insert clause 852.223-71, Safety and Health, in solicitations and contracts that involve hazardous materials for the following types of requirements:(a)Research, development, or test projects.(b)Transportation of hazardous materials.(c)Construction.