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republic-os/legal/us/code/title-30/chapter-17/section-643.md
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Fabio 76b8ec33a7 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>
2026-07-06 10:51:44 -04:00

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---
type: "LegalText"
title: "30 U.S.C. § 643"
description: "“Exploration” defined"
jurisdiction: "us"
corpus: "united_states_code"
kind: "code_section"
title_number: 30
title_name: "MINERAL LANDS AND MINING"
chapter_number: "17"
chapter_name: "EXPLORATION PROGRAM FOR DISCOVERY OF MINERALS"
section: "643"
citation: "30 U.S.C. § 643"
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_usc30@119-100.zip"
source_identifier: "/us/usc/t30/s643"
source_file: "data/legal/raw/us/code/title-30/usc30.xml"
source_hash: "8edd9f8da52ce45a5ee5c5f9b736eb0b0ad12570bd7f70527de26d22224b5b61"
raw_snapshot_hash: "355f8eb5c6ad5372de4a8e665d9ed90202d53d2aac19ac001d43948af4a4dd2f"
text_hash: "a15dd79a2383863a9a312427c70c1a0cc32ab8de453964492998bcd0aee0c53e"
retrieved_at: "2026-07-04"
confidence: "official"
tags: ["legal", "us-code"]
---
# 30 U.S.C. § 643 - “Exploration” defined
## Text
As used in this chapter, the term “exploration” means the search for new or unexplored deposits of minerals, including related development work, within the United States, its Territories and possessions, whether conducted from the surface or underground, using recognized and sound procedures including standard geophysical and geochemical methods for obtaining mineralogical and geological information.
(Pub. L. 85701, § 3, Aug. 21, 1958, 72 Stat. 701.)