Section 7805, here, is a familiar Code Section. It is titled: Rules and regulations. It’s first subsection is:
(a) AuthorizationNote that the authorization is for “rules and regulations.” I focus here just on regulations (although I will sometimes use the term rules, which is an APA category that may include both regulations and subregulatory guidance (such as in the case of the IRS, Revenue Rulings).
Except where such authority is expressly given by this title to any person other than an officer or employee of the Treasury Department, the Secretary shall prescribe all needful rules and regulations for the enforcement of this title, including all rules and regulations as may be necessary by reason of any alteration of law in relation to internal revenue.
The antecedents of the current § 7805(a) trace back to the dawn of the modern income tax (stated by scholars as 1917, 1918 or 1921, with some antecedents ever further back in general administrative law). Section 7805(a) is often referred to as a “general authority” provision in contrast to specific authority in a Code section to promulgate regulations to either define (interpret) a term in the statutory text (interpretive regulations) or to prescribe the law (a legislative regulation). Most Treasury regulations are general authority regulations issued under § 7805(a). (There is some fuzziness here because some would argue that a specific authority statutory direction to define a statutory term makes the regulations legislative in character rather than interpretive, even though all the statute does is direct the IRS to interpret the statutory term; but let’s not get hung up on that because that would mean that the specific authority regulations are all legislative rather than interpretive and would not affect the dividing line between § 7805(a) general authority regulations and specific authority regulations.)
The question I address here is whether regulations issued under general authority statutes such as § 7805(a) (or even under inherent authority derived from Congress’ assigning administrative authority to the agency) are interpretive or legislative in character. I focus here on § 7805(a) for Treasury Regulations, but the issue is presented for other agency general authority regulations.
In the current context, § 7805 had a pretty clear meaning for most of its statutory life. The meaning was that § 7805(a) authorized the Treasury (IRS) to prescribe guidance in the form of “rules and regulations” which did not create new law but interpreted ambiguous text in existing statutes. The understanding was that § 7805(a) authorized interpretive regulations and did not authorize legislative regulations.
I think most judges and scholars were comfortable with understanding at least until Chevron and more likely until later cases interpreting Chevron. Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837 (1984), and then principally United States v. Mead Corp., 533 U.S. 218 (2001). Then some new ways of viewing § 7805(a) crept into the academic discourse. Section 7805(a), so the new notion goes, is a grant of authority to the IRS to create legislative regulations (legislative rules must be regulations). A key feature of legislative regulations is that they create the law just as if they were statutes and are not interpretations of the law (statutes). Because legislative regulations are the law (and not interpretations of the law), they are said to have the force of law. Thus, morphing that traditional modeling of the legislative regulations to deference concepts under Chevron and its progeny, the new notion is that § 7805(a) regulations, within the scope of the authority granted, are the law. Why? Because, once you say that § 7805 regulations have the force of law, you say that they are the law just like statutes and not interpretations of the law (statutes).