48 CFR §213.201

1. (f)Notwithstanding FAR 13.201(f), apply the prohibition at 223.7402 to purchases at or below the micro-purchase threshold.
2. (g)See PGI 213.201(g) for guidance on use of the higher micro-purchase thresholds prescribed in FAR 13.201(g) to support a declared contingency operation or to facilitate defense against or recovery from nuclear, biological, chemical, or radiological attack.
3. (j)Do not procure or obtain, or extend or renew a contract to procure or obtain, any equipment, system, or service to carry out covered missions that use covered defense telecommunications equipment or services as a substantial or essential component of any system, or as critical technology as part of any system, unless a waiver is granted. (See subpart 204.21.)