---
kind: "section"
citation: "30 C.F.R. § 250.511"
title: "30"
number: "250.511"
heading: "Traveling-block safety device."
url: "https://uscodex.org/cfr/30/250.511"
---

# §250.511. Traveling-block safety device.


All units being used for well-completion operations that have both a traveling block and a crown block must be equipped with a safety device that is designed to prevent the traveling block from striking the crown block. The device must be checked for proper operation weekly and after each drill-line slipping operation. The results of the operational check must be entered in the operations log.


## Notes

### Authority

Authority: 30 U.S.C. 1751, 31 U.S.C. 9701, 33 U.S.C. 1321(j)(1)(C), 43 U.S.C. 1334.

### Source

Source: 76 FR 64462, Oct. 18, 2011, unless otherwise noted.