29 CFR § 1919.17
Exemptions from heat treatment
July 28, 2023
§ 1919.17 Exemptions from heat treatment.
Gear made of steel, or gear which contains (as in ball bearings swivels), or is permanently attached to (as with blocks) equipment made of materials which cannot be subjected to heat treatment shall be exempt from the requirements of § 1919.16. Such gear, however, shall be thoroughly examined in the manner described in § 1919.15(c).