R 408.41937 Powered staplers and nailers.

Rule 1937. (1) A portable powered stapler or nailer that is capable of driving a fastener that has a diameter of more than .0475 inch, 18 gauge A.W.G., at more than 75 feet per second shall be designed so that the operator is required to make not less than 2 separate operations to activate the tool, with 1 operation being to place the tool against the work surface. (2) The design shall prevent the discharge of the stapler or nailer when loading or when dropped. (3) A portable powered stapler or nailer shall not be pointed or discharged at other than the workpiece. (4) The operator of a portable powered stapler or nailer and those employees within the striking distance of its fastener shall wear eye protection provided for and as prescribed in Construction Safety Standard Part 6 “Personal Protective Equipment,” as referenced in R 408.41902. (5) A positive actuation of the operator control shall be required to propel each fastener from a powered stapler or nailer. (6) When relieving a jam-up of a fastening device, the source of power shall be disconnected. (7) Before use, a portable powered stapler and nailer shall be tested for safe operation.