48 CFR §839.106-70

1. (a)Contracting officers shall insert the clause at 852.239-70, Security Requirements for Information Technology Resources, and the clause at 852.239-71, Information System Security Plan and Accreditation, in all solicitations, contracts, and orders exceeding the micro-purchase threshold that include information technology services.
2. (b)Contracting officers shall insert the clause at 852.239-72, Information System Design and Development, in solicitations, contracts, orders, and agreements where services to perform information system design and development are required.
3. (c)Contracting officers shall insert the clause at 852.239-73, Information System Hosting, Operation, Maintenance or Use, in solicitations, contracts, orders, and agreements where services to perform information system hosting, operation, maintenance, or use are required.
4. (d)Contracting officers shall insert the clause at 852.239-74, Security Controls Compliance Testing, in solicitations, contracts, orders, and agreements, when the clause at 852.239-72 or 852.239-73 is inserted.