The 2021 National Defense Authorization Act (NDAA) provides for the imposition of sanctions against Turkey for buying the Russian S-400 system. It is mentioned that the purchase of the S-400s constitutes a “significant transaction” (as stated in CAATSA). It therefore calls for the provisions of Countering America’s Adversaries Through Sanctions Act (CAATSA) to be enforced and for at least five sanctions to be imposed within 30 days of its signing.
The act stipulates that after one year the president can cancel the sanctions provided he certifies to the relevant congressional committees that:
- the Turkish government and any person acting on its behalf no longer own the S-400 air defense system or a successor system.
- no official of the Russian Federation or persons acting on behalf of the Government of the Russian Federation or the defense sector of the Russian Federation shall operate or maintain any S-400 air defense system or successor system within Turkey.
- the president has received credible assurances from the Turkish government that it will not knowingly engage or allow any foreigner to engage in any activity for the recovery of the S-400 air defense system subject to sanctions in accordance with section 231 of the CAATSA.