ISA RP12.06.01
Recommended Practice for Wiring Methods for Hazardous (Classified) Locations Instrumentation Part 1: Intrinsic Safety
Published by International Society of Automation (ISA)
The CFR incorporates ISA RP12.06.01 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 edition the CFR requires
ISA RP12.06.01-2003, approved April 16, 2003
As the CFR lists it: “ANSI/ISA-RP12.06.01-2003, Recommended Practice for Wiring Methods for Hazardous (Classified) Locations Instrumentation Part 1: Intrinsic Safety, approved April 16, 2003 (“ANSI RP12.06.01”)”
- Listed in 46 CFR 110.10-1(b)(1); required by46 CFR 111.105-11 ↗
How to read it
- Where to get itISA website ↗
The web address the CFR prints for this publisher.
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.
ISA RP12.06.01 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.