30 CFR § 56.19121
At the time of completion, the person performing inspections, tests, and
maintenance of hoisting equipment required in standard 56.19120
shall certify, by signature and date, that they have been done.
A record of any part that is not functioning properly shall be made and
dated. Certifications and records shall be retained for one year.
( § 101, Pub. L. 91-173 as amended by
Pub. L. 95-164, 91 Stat. 1291 (30 U.S.C. 811))
[60 FR 33719, June 29, 1995]