(1) Each hand feed jointer or buzz planer with horizontal head must be provided with an automatic guard over the cutting head both in front of and in back of the guide.

(2) Each jointer or buzz planer with horizontal head must be equipped with a cylindrical cutting head, the throat of which must not exceed three-eighths inch in depth or one-half inch in width. The knife projection must not exceed one-eighth inch beyond the cylindrical body of the head.

(3) The opening in the table must be kept as small as possible. The clearance between the edge of the rear table and the cutter head must be not more than one-eighth inch. The table throat opening must be not more than two and one-half inches when tables are set or aligned with each other for zero cut.

(4) Each jointer or buzz planer with vertical head must be guarded by an exhaust hood or other approved device which completely encloses the revolving head except for a slot sufficiently wide to permit the application of material. The guard must effectively protect the operator's hand from coming in contact with the revolving knives. The guard must automatically adjust itself to cover the unused portion of the head and must remain in contact with the material at all times.

(5) Push sticks must be provided and used for feeding stock through hand operated jointers or buzz planers.