Section 1223.7000 - Contract clauses(a) Where all or part of a contract will be performed on Government-owned or leased property, the contracting officer shall insert the clause at 1252.223-71, Accident and Fire Reporting.(b) For all solicitations and contracts under which human test subjects will be utilized, the contracting officer shall insert the clause at 1252.223-72, Protection of Human Subjects. Contractors can request copies of applicable Operating Administration (OA)-specific policies regarding the protection of human subjects directly from contracting officers.(c) In all solicitations and contracts exceeding the simplified acquisition threshold, the contracting officer shall insert the clause at 1252.223-73, Seat Belt Use Policies and Programs.