30 CFR § 57.19132 Safety catches. (a) A performance drop test of hoist conveyance safety catches shall
be made at the time of installation, or prior to installation in a mockup of
the actual installation. The test shall be certified to in writing by the
manufacturer or by a registered professional engineer performing the
test. (b) After installation and before use, and at the beginning of any
seven day period during which the conveyance is to be used, the conveyance
shall be suitably rested and the hoist rope slackened to test for the
unrestricted functioning of the safety catches and their activating
mechanisms. (c) The safety catches shall be inspected by a competent person at
the beginning of any 24-hour period that the conveyance is to be used.
