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 14 — Aeronautics and Space · Part 170 — Establishment and Discontinuance Criteria for Air Traffic Control Services and Navigational Facilities · § 170.15

§ 170.15. ATCT discontinuance criteria.

32 words·~1 min read·/us/cfr/t14/s§ 170.15·

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

An ATCT will be subject to discontinuance when the continued operation and maintenance costs less termination costs
(CMPV)of the ATCT exceed the present value of its remaining life-cycle benefits (BPV): BPV/CMPV<1.0
★   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 Statutes, regulations, and case law change; summaries, search results, AI output, and member posts may be incomplete, out of date, or wrong.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.