API 9A
Specification for Wire Rope, Section 3, Properties and Tests for Wire and Wire Rope
Published by American Petroleum Institute (API)
The CFR incorporates API 9A 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
API Spec 9A, May 28, 1984
As the CFR lists it: “API Specification 9A, Specification for Wire Rope, Section 3, Properties and Tests for Wire and Wire Rope, May 28, 1984”
- Listed in 33 CFR 164.03(b)(1); required by33 CFR 164.74
How to read it
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API 9A 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.