November 20, 2018
On Tuesday, November 20, 2018, the President signed into law:
H.R. 2615, the "Gulf Islands National Seashore Land Exchange Act," which authorizes the exchange of Federal land within the Gulf Islands National Seashore in Jackson County, Mississippi, for non-Federal land adjacent to the National Seashore.
Donald J. Trump, President Donald J. Trump Signed H.R. 2615 into Law Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/336320