Tap any paragraph to write a margin note. Your notes collect in the Desk below the text and file under cases with @. The side-by-side margin rail opens on a larger screen.

§
Marginalia
Code · CFR · Title 30 — Mineral Resources · Part 75 · § 75.302

§ 75.302. Main mine fans.

60 words·~1 min read·/us/cfr/t30/s§ 75.302·

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

Each coal mine shall be ventilated by one or more main mine fans. Booster fans shall not be installed underground to assist main mine fans except in anthracite mines. In anthracite mines, booster fans installed in the main air current or a split of the main air current may be used provided their use is approved in the ventilation plan.
Connections1 cite this
Cited by 1 section
Citation graph
cites case law
§ 75.302
Main mine fans.
Fed. Reg.×1
Cites 0Cited by 1 across 1 source
★   the supreme law of the land   ★
Don't Tread on Me
E Pluribus Unum — out of many, one

"If you don't know your rights, you don't have any."

Marginalia · a citizen's law index
A research desk, not legal advice. Always read the cited source before relying on a summary.
Questions or an issue? support@self-law.org
disclaimerMarginalia is a research index, not a law firm. Nothing on this site is legal, tax, or financial advice and no attorney–client relationship is formed by using it. Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong. Any interpretation drawn from material on this site should be validated by a licensed attorney in your jurisdiction before you act on it.