Where is Section 24220 codified in the U.S. Code and how is it cited?
Executive summary
Section 24220 is a numbered subsection of the Infrastructure Investment and Jobs Act (IIJA, Pub. L. 117–58) that directs the National Highway Traffic Safety Administration to develop rules related to “advanced drunk and impaired driving prevention technology,” and contemporary legislative and regulatory documents cite it as “section 24220 of the Infrastructure Investment and Jobs Act (49 U.S.C.)” rather than by a single, settled U.S. Code section number [1] [2] [3]. The precise editorial codification into a specific 49 U.S.C. section or note is handled by the House Office of the Law Revision Counsel and may appear as an insertion in title 49 or as a statutory note; public sources analyzed here identify the statutory origin and common citation practice but do not show a single finalized U.S.C. section number for 24220 [4] [5].
1. Origin: where Section 24220 lives in the session law
The text labeled “Sec. 24220” appears in the IIJA (the 2021 “bipartisan infrastructure law,” Pub. L. 117–58) according to the compiled act documents and the official COMPS PDF from govinfo that reproduces the public law and its numbered sections [1]. Multiple pieces of later legislation and rulemaking materials refer back to “section 24220 of the Infrastructure Investment and Jobs Act,” demonstrating that 24220 is an internal section number within that public law rather than an automatic standalone U.S. Code citation shown in these sources [6] [3].
2. How reporters and rule dockets cite it today
Congressional and regulatory texts commonly cite the provision as “section 24220 of the Infrastructure Investment and Jobs Act (49 U.S.C.)”; for example, a 2025 House bill refers to the sunset tied to “the rule required under section 24220 of the Infrastructure Investment and Jobs Act (49 U.S.C.)” and regulatory docket descriptions similarly point to a rule mandate in Section 24220 with a November 2024 deadline referenced on RegInfo [3] [7]. Those citations show the accepted shorthand used by legislators and agencies when cross-referencing the IIJA requirement without supplying a discrete U.S.C. section symbol (§) and number in every instance [3] [7].
3. What the text does and who enforces it (context for citation practices)
Section 24220 instructs NHTSA to promulgate a rulemaking regarding advanced impaired‑driving prevention technology—language summarized in blog and analysis pieces and echoed in the session law repeal bills that reference “Section 24220 of the Infrastructure Investment and Jobs Act (49 U.S.C.)” [2] [6]. That rulemaking obligation has been tracked on the federal rule docket and in the press, which explains why many secondary sources cite the IIJA section number directly when discussing regulatory deadlines and policy content [7] [8].
4. Why one might not find a neat 49 U.S.C. § 24220 citation in code lookups
The United States Code is an editorial consolidation organized by subject titles and maintained by the Office of the Law Revision Counsel; not every numbered provision in a public law appears as a single new U.S.C. section symbol on the day of enactment—some provisions are codified into existing sections, placed in notes, or shown with bracketed editorial material [5] [4]. Public materials examined here show multiple citations to “Sec. 24220” within the IIJA text and downstream references that use the IIJA section label, but they do not present a single explicit U.S.C. section symbol (for example, “49 U.S.C. § ”) pinned to 24220 in the sources provided [1] [3].
5. Practical recommendation: how to cite Section 24220 now
When referring to the law in briefs, articles, or regulatory filings today, the supported form from the sources is to cite the IIJA section directly—e.g., “Infrastructure Investment and Jobs Act (Pub. L. 117–58), sec. 24220,” or the commonly used shorthand “section 24220 of the Infrastructure Investment and Jobs Act (49 U.S.C.)”—and, when needed for legal filings, consult the Office of the Law Revision Counsel’s online U.S. Code browser to confirm whether the provision has since been given a precise 49 U.S.C. sectional citation or placed in a statutory note [4] [9] [5]. The reviewed materials support the IIJA section citation practice but do not supply a definitive single-line 49 U.S.C. numeric section citation in the sources examined [3] [6].