UL 1058

Halogenated Agent Extinguishing System Units

Published by UL Standards & Engagement (UL)

The CFR incorporates UL 1058 by reference, which makes the edition it names part of the regulation. The CFR requires the edition it names, which may not be the newest. To enforce any other edition, the agency must publish the change in the Federal Register.

The 2 editions the CFR requires

Different parts name different editions; each applies where its part says so. Newest first.

UL 1058-1989, as amended through April 19, 1994

As the CFR lists it: “UL 1058-1989, Halogenated Agent Extinguishing System Units, as amended through April 19, 1994”

UL 1058-1989, April 19, 1994, Halogenated Agent Extinguishing System Units

As the CFR lists it: “UL 1058-1989, as amended through April 19, 1994, Halogenated Agent Extinguishing System Units (“UL 1058”)”

How to read it

A free or purchased copy may not be the edition the CFR names; check it against the edition above. Every incorporated standard can also be inspected at the National Archives (NARA) and at the agency named in the section that lists it.

UL 1058 is copyrighted by its publisher; RegKnot shows its title and the editions the CFR names, not its text. Read from the eCFR's incorporation-by-reference sections, current as of October 26, 2026. The regulation text governs. All standards the CFR requires.