§ 250.611. Traveling-block safety device.
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/us/cfr/t30/s§ 250.611·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
You must equip all units being used for well-workover operations that have both a traveling block and a crown block with a safety device that is designed to prevent the traveling block from striking the crown block. You must check the device for proper operation weekly and after each drill-line slipping operation. You must enter the results of the operational check in the operations log. \[81 FR 36149, June 6, 2016\]