R 408.12718 Saws generally.

Rule 2718. (1) A cut-off saw that strokes automatically without the operator's control of each stroke shall have a guard to keep the operator's hands from coming in contact with a blade. (2) An automatic cut-off saw that strokes continuously without the operator being able to control each stroke shall not be used. (3) To avoid overspeed caused by mounting a saw larger than intended, lugs shall be cast on saw frame or tables or another means shall be provided to limit the saw blade size that can be mounted. (4) A circular saw fence shall be firmly secured to the table or table assembly without changing its alignment with the saw. For a saw with a tilting table or tilting arbor, the fence shall remain in alignment with the saw, regardless of the angle of the saw with the table. (5) To insure exact alignment with the saw for all positions of the gauge, a circular saw gauge shall slide in grooves or tracks which are accurately machined. (6) A hinged saw table in use shall be firmly secured in position and in true alignment with the saw.