10.Vertical openings: Any opening made through a wall that presents a falling hazard for an object that may cause injuries shall be protected with a net or a protective screen.
O.C. 885-2001, s. 10; 1411-2018O.C. 1411-2018, s. 31.
10.Vertical openings: Any opening made through a wall that presents a falling hazard for a worker or for any object shall be protected with a guardrail or a protective screen.