In Hamel v. Commissioner, T.C. Memo. 2025-19 (Hamel II), TN here, GD here * and GS here **, decided 2/25/25, upon reconsideration of its prior opinion in Hamel v. Commissioner, 2024 T.C. Memo. 62 (Hamel I), GS here, the Court rejected Hamel’s argument that the regulation failed the Loper Bright requirement of the best interpretation of the statute. The regulation in question interpreted the requirement in TEFRA §6229(e) to furnish notice of an otherwise unidentified partner in a specific way in order to avoid the extended statute of limitations. Basically, Hamel argued that the IRS otherwise knew of the unidentified partner even though the notice required by the regulation was not furnished as the regulation required.
Loper Bright Enterprises v. Raimondo, 603 U. S. ____, 144 S.Ct. 2244 (2024) overruled Chevron deference based on statutory ambiguity. In overruling Chevron deference, the Court noted that Congress might confer discretionary authority to the agency to fill gaps but such authority will not be assumed from statutory ambiguity alone. The Supreme Court also cautioned that prior authority relying upon Chevron deference was not necessarily overruled.
The principal authority relied upon in Hamel I was Gaughf Props., L.P. v. Commissioner, 139 T.C. 219 (2012), aff'd, 738 F.3d 415 (D.C. Cir. 2013). Gaughf relied upon Chevron deference to sustain the regulation. Hence, Hamel I was based upon a Chevron deference holding. Hamel filed the motion for reconsideration urging that Loper Bright required reconsideration of the Gaughf precedent applied in Hamel I. As I understand Hamel II (I did not find it easy to understand), the Court held that the statutory provisions were sufficient to authorize the Treasury to fill in those details by regulation. In other words, although the statutory provision was ambiguous (i.e., did not permit resolution of the issue by textual interpretation alone), the Treasury was given the discretion to fill in the details. Hence, the resolution was not based on ambiguity alone, and the manner chosen by Treasury in the regulation was not arbitrary and capricious.
The Court relied in part upon Nat’l Muffler Dealers Ass’n v. United States, 440 U.S. 472 (1979) for the following which it apparently felt was unaffected by Loper Bright (Slip Op. 7-8):