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-49/chapter-475/section-47511.md

@@ -0,0 +1,47 @@
+---
+type: "LegalText"
+title: "49 U.S.C. § 47511"
+description: "CLEEN engine and airframe technology partnership"
+jurisdiction: "us"
+corpus: "united_states_code"
+kind: "code_section"
+title_number: 49
+title_name: "TRANSPORTATION"
+chapter_number: "475"
+chapter_name: "NOISE"
+section: "47511"
+citation: "49 U.S.C. § 47511"
+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_usc49@119-100.zip"
+source_identifier: "/us/usc/t49/s47511"
+source_file: "data/legal/raw/us/code/title-49/usc49.xml"
+source_hash: "93bd2135debce9fac0b5096d552876a1ce6b3c49f0bc4eaf02d262cc8e5d63f2"
+raw_snapshot_hash: "0786acdd244d8f42c5a8e8ed1ec2a8dcb47dd0e02a286752710a20745702a4fb"
+text_hash: "18e645bd319069ad8290595c5f154c9c48281f77e81268ca992e2fa39e27cbdd"
+retrieved_at: "2026-07-04"
+confidence: "official"
+tags: ["legal", "us-code"]
+---
+
+# 49 U.S.C. § 47511 - CLEEN engine and airframe technology partnership
+
+## Text
+
+(a) In General.— The Administrator of the Federal Aviation Administration shall enter into a cost-sharing cooperative agreement, using a competitive process, with institutions, entities, or consortiums to carry out a program for the development, maturation, and testing of certifiable CLEEN aircraft, engine technologies, and jet fuels for civil airplanes.
+
+(b) CLEEN Engine and Airframe Technology Defined.— In this section, the term “CLEEN aircraft and engine technology” means continuous lower energy, emissions, and noise aircraft and engine technology.
+
+(c) Performance Objective.— The Administrator shall establish the performance objectives for the program in terms of the specific objectives to reduce fuel burn, emissions and noise.
+
+(d) Selection.— In carrying out the program, the Administrator may provide that not less than 2 of the cooperative agreements entered into under this section involve the participation of an entity that is a small business concern (as defined in section 3 of the Small Business Act (15 U.S.C. 632)), provided that the submitted technology proposal of the entity meets, at a minimum, FAA Acquisition Management System requirements and requisite technology readiness levels for entry into the agreement, as determined by the Administrator.
+
+(Added Pub. L. 115–254, div. B, title VII, § 743(a), Oct. 5, 2018, 132 Stat. 3413; amended Pub. L. 118–63, title X, § 1008, May 16, 2024, 138 Stat. 1389.)
+
+## Notes
+
+Editorial Notes
+
+Amendments2024—Subsec. (a). Pub. L. 118–63, § 1008(1), struck out “subsonic” after “fuels for civil”. Subsec. (d). Pub. L. 118–63, § 1008(2), added subsec. (d).