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-46/chapter-556/section-55604.md

@@ -0,0 +1,55 @@
+---
+type: "LegalText"
+title: "46 U.S.C. § 55604"
+description: "Research on marine highway transportation"
+jurisdiction: "us"
+corpus: "united_states_code"
+kind: "code_section"
+title_number: 46
+title_name: "SHIPPING"
+chapter_number: "556"
+chapter_name: "MARINE HIGHWAYS"
+section: "55604"
+citation: "46 U.S.C. § 55604"
+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_usc46@119-100.zip"
+source_identifier: "/us/usc/t46/s55604"
+source_file: "data/legal/raw/us/code/title-46/usc46.xml"
+source_hash: "f83d2b8f0e1b3fd1283d0123998873cdfbedfdde92eba8a4c571f8d8bff15209"
+raw_snapshot_hash: "eb1331aa3c08ed87231a3606d86b30d1b5942cdf8542f6a3df8ac1d66e86057f"
+text_hash: "f2aad6ee9c897807b51fd2190458d6145a0e97091c5c15621125467ccb1d1571"
+retrieved_at: "2026-07-04"
+confidence: "official"
+tags: ["legal", "us-code"]
+---
+
+# 46 U.S.C. § 55604 - Research on marine highway transportation
+
+## Text
+
+The Secretary of Transportation, in consultation with the Administrator of the Environmental Protection Agency, may conduct research on marine highway transportation, regarding—
+
+(1) the economic effects of marine highway transportation on the United States economy;
+
+(2) the effects of marine highway transportation, including with respect to the provision of additional transportation options, on rural areas;
+
+(3) the environmental and transportation benefits to be derived from marine highway transportation alternatives for other forms of transportation;
+
+(4) technology, vessel design, and other improvements that would reduce emissions, increase fuel economy, and lower costs of marine highway transportation and increase the efficiency of intermodal transfers; and
+
+(5) solutions to impediments to marine highway transportation projects designated under section 55601.
+
+(Added Pub. L. 110–140, title XI, § 1121(a), Dec. 19, 2007, 121 Stat. 1761; amended Pub. L. 116–283, div. G, title LVXXXIII [LXXXIII], § 8332(d)(4), (5), Jan. 1, 2021, 134 Stat. 4705; Pub. L. 117–263, div. C, title XXXV, § 3521(c), Dec. 23, 2022, 136 Stat. 3078.)
+
+## Notes
+
+Editorial Notes
+
+Amendments2022—Pars. (1) to (5). Pub. L. 117–263 added pars. (1) and (2) and redesignated former pars. (1) to (3) as (3) to (5), respectively. 2021—Pub. L. 116–283 substituted “marine highway” for “short sea” in section catchline and wherever appearing in text.
+
+Statutory Notes and Related Subsidiaries
+
+Effective DateSection effective 1 day after Dec. 19, 2007, see section 1601 of Pub. L. 110–140, set out as a note under section 1824 of Title 2, The Congress.