August 02, 2017
On Wednesday, August 2, 2017, the President signed into law:
H.R. 3364, the "Countering America's Adversaries Through Sanctions Act," which strengthens and expands statutory sanctions on Iran, Russia, and North Korea, and for other purposes.
Donald J. Trump, President Donald J. Trump Signs H.R. 3364 into Law Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/331178