On December 20, 2019, the President signed into law the National Defense Authorization Act for Fiscal Year 2020 (NDAA), which authorizes the President to impose sanctions on foreign persons that knowingly sell, lease, or provide vessels for the construction of the Nord Stream 2 or TurkStream pipeline projects. The policies advanced by the NDAA are consistent with prior U.S. policy and legislation, particularly the Countering America’s Adversaries Through Sanctions Act. This MassPoint publication discusses PEESA’s policies, sanctions mechanics, the relationship between PEESA and CAATSA, and key takeaways.