Legal corpus: the complete U.S. Code (59,740 sections, all 53 titles)

Ingested titles 12–51 and 54 from OLRC USLM XML @119-100 (the whole Code
now, uniform edition; Title 53 is reserved/empty). LegalText 11,221 ->
59,740; repo total 105,704 records. Deterministic (byte-identical rerun,
verified on Title 42's 8,356 sections); make check green. make
legal-us-code default now covers every title.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

legal/us/code/title-26/chapter-68/section-6678.md

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+---
+type: "LegalText"
+title: "26 U.S.C. § 6678"
+description: "Repealed. Pub. L. 99–514, title XV, § 1501(d)(2), Oct. 22, 1986, 100 Stat. 2740]"
+jurisdiction: "us"
+corpus: "united_states_code"
+kind: "code_section"
+title_number: 26
+title_name: "INTERNAL REVENUE CODE"
+chapter_number: "68"
+chapter_name: "ADDITIONS TO THE TAX, ADDITIONAL AMOUNTS, AND ASSESSABLE PENALTIES"
+section: "6678"
+citation: "26 U.S.C. § 6678"
+status: "current"
+release_point: "119-100"
+release_date: "2026-06-26"
+source: "official"
+source_url: "https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc26@119-100.zip"
+source_identifier: "/us/usc/t26/s6678"
+source_file: "data/legal/raw/us/code/title-26/usc26.xml"
+source_hash: "20639e1e3038e82cd1ee93b0bbf148c924b464c3cf5477a14bd37641609d37f2"
+raw_snapshot_hash: "a261f094809116f42a96648a3d5eee80fa010379d67412551c21dd5c900b27f4"
+text_hash: "f325df27dae29f3d28fb3d340f431e73b1e8a917f1dfa68905d441b69271f2f1"
+retrieved_at: "2026-07-04"
+confidence: "official"
+tags: ["legal", "us-code"]
+---
+
+# 26 U.S.C. § 6678 - Repealed. Pub. L. 99–514, title XV, § 1501(d)(2), Oct. 22, 1986, 100 Stat. 2740]
+
+## Notes
+
+Section, added Pub. L. 87–834, § 19(e), Oct. 16, 1962, 76 Stat. 1058; amended Pub. L. 88–272, title II, §§ 204(c)(2), 221(b)(3), Feb. 26, 1964, 78 Stat. 37, 75; Pub. L. 94–455, title XIX, § 1906(b)(13)(A), Oct. 4, 1976, 90 Stat. 1834; Pub. L. 96–167, § 7(b)(2), Dec. 29, 1979, 93 Stat. 1277; Pub. L. 97–34, title VII, § 723(a)(2), (b)(2), Aug. 13, 1981, 95 Stat. 343, 344; Pub. L. 97–248, title III, §§ 309(b)(3), 311(a)(2), 312(b), 314(b), 315(c), Sept. 3, 1982, 96 Stat. 595, 600, 602, 605, 607; Pub. L. 97–448, title II, § 201(i)(3), Jan. 12, 1983, 96 Stat. 2395; Pub. L. 98–67, title I, § 105(b)(2), Aug. 5, 1983, 97 Stat. 381; Pub. L. 98–369, div. A, title I, §§ 145(b)(3), 146(b)(3), 148(b)(3), 149(b)(2), (3), 155(b)(2)(B), title VII, § 714(f), (q)(3), July 18, 1984, 98 Stat. 685, 686, 689, 690, 693, 961, 966; Pub. L. 99–514, title XVIII, § 1811(c)(1), Oct. 22, 1986, 100 Stat. 2833, related to penalties for failure to furnish certain statements.
+
+Statutory Notes and Related Subsidiaries
+
+Effective Date of RepealRepeal applicable to returns the due date for which (determined without regard to extensions) is after Dec. 31, 1986, see section 1501(e) of Pub. L. 99–514, set out as an Effective Date note under section 6721 of this title.