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Subchapter 4. Construction Safety Orders
Article 9. Derricks, Cranes, Boom-Type Excavators
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3,
1. Amendment of subsection (d) filed 3-19-79; effective thirtieth day thereafter
(Register 79, No. 12).
2. Amendment of subsections (a) and (c) filed 1-17-80; effective thirtieth
day thereafter (Register 80, No. 3).
3. Repealer filed 8-29-86; effective thirtieth day thereafter (Register 86,
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