WAC 296-806-48056. Make sure jointers with horizontal cutting heads meet these requirements

(1) You must make sure the cutting head on hand-fed jointers is cylindrical: (2) You must install and adjust the knife blade so it does not protrude more than one-eighth inch beyond the body of the head. (3) You must make sure the opening in the table meets all of the following: (a) Is kept as small as possible. (b) The clearance between the edge of the rear table and the cutting head is not more than one-eighth inch. (c) The table throat opening is not more than two and one-half inches when the tables are set or aligned with each other for zero cut.