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(a) Tumbling barrels shall be completely enclosed or guarded by movable guardrails or by other suitable and effective means and shall be equipped with an interlock so installed that the drum cannot turn unless the guard is in place.
(b) If enclosed, tumbling barrels shall be equipped with an effective lock or brake.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Repealer and new section filed 10-25-74; effective thirtieth day thereafter (Register 74, No. 43).
2. Amendment filed 12-16-85; effective thirtieth day thereafter (Register 85, No. 51).