Mechanical or foot power punches and line perforators shall be provided with a device that will prevent the operator's fingers from entering the point of operation.
EXCEPTION: Paper punches and line perforators where the clearance between the opening for feeding stock does not exceed three-eighths inch when in the open position.
Cal. Code Regs. Tit. 8, § 4443
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.