On April 21, 2017, the Trump Administration issued Executive Order 13789, which instructed the IRS to review all “significant tax regulations” issued on or after January 1, 2016 to identify as targets for modification, rescission or delayed effectiveness any regulations that (i) impose an undue financial burden on U.S. taxpayers; (ii) add undue complexity to the Federal tax laws; or (iii) exceed the statutory authority of the IRS. Having completed this review, earlier this month,…