CFR › Title 30 › Part 57 › §57.1411230 CFR §57.14112Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Guards shall be constructed and maintained to—(1)Withstand the vibration, shock, and wear to which they will be subjected during normal operation; and(2)Not create a hazard by their use.(b)Guards shall be securely in place while machinery is being operated, except when testing or making adjustments which cannot be performed without removal of the guard.