August 22, 2017
On Tuesday, August 22, 2017, the President signed into law:
H.R. 339, the "Northern Mariana Islands Economic Expansion Act," which makes certain changes to the transitional worker program for the Commonwealth of the Northern Mariana Islands.
Donald J. Trump (1st Term), President Donald J. Trump Signs H.R. 339 into Law Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/330961