On May 13, 2019, the U.S. Internal Revenue Service (“IRS”) and Treasury Department published proposed regulations providing guidance on the rules imposing withholding and reporting requirements under the Code[1] on dispositions of certain partnership interests by non-U.S. persons (the “Proposed Regulations”). The Proposed Regulations expand and in important ways modify earlier Notice 2018-29[2] on dispositions of non-publicly traded partnership interests.[3] Unless otherwise specified, this post focuses on the aspects of the Proposed…