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Subchapter 14. Petroleum Safety Orders--Drilling and Production
Article 40. Traveling Blocks and Hooks or Similar Devices
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§6638. Traveling Blocks and Traveling Block Hooks or Similar Devices.

(a) Every traveling block and traveling block hook, including their component parts, shall be designed, constructed, installed and maintained to conform with good engineering practices.

(b) No traveling block, traveling block hook or their component parts shall be subjected to a load in excess of that for which they are designed.

(c) Every traveling block shall be guarded to minimize the hazard of contact with the sheaves and their nip points.

(d) Every traveling block hook shall be equipped with a safety latch or other device to close the opening in the hook and to prevent the load from becoming disengaged from the hook.

(e) All equipment attached either directly or indirectly to, and suspended from, the traveling block hook shall be securely fastened.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment filed 7-20-59; effective thirtieth day thereafter (Reg. 59, No. 12).

2. Amendment of section and Note filed 5-8-95; operative 6-7-95 (Register 95, No. 19).

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