(a) Wherever platforms are herein required they shall hereafter be not less than 24 inches wide constructed of metal with four-inch toeboard, and have railings 42 inches high. Railings shall consist of one and one-quarter inch pipe or equivalent and have intermediate rails.

(b) Ladders giving access to same may be vertical or inclined and shall be of substantial construction and at least 18 inches wide between side rails. Stairs shall be at least 24 inches wide and provided with hand rails.

(c) Where the distance from the floor to top of the boiler or boiler setting exceeds eight feet, a permanent stairway, inclined or vertical ladder shall be provided to give safe access to and permit exit from boiler tops.

(d) Where space permits, stairways or inclined ladders shall be used. Where more than two boilers are operated in battery, two means of access remote from each other shall be provided, one of which may be a vertical ladder.

(e) A permanent platform providing access to the main stop valve of the boiler shall be installed except where the tops of the boiler setting are flat, without obstruction to the operating valve.

(f) Where the low point of a water column is located 15 feet or more above the floor or walkway, a platform with standard toeboard shall be installed. A permanent ladder need not be provided.

(g) Platforms shall be installed opposite one end of all drums of water tube boilers which are over four feet above the floor or walkway, to permit safe access to the interior of drums for cleanouts and inspection.

(h) All boilers hereafter installed shall be provided with platforms at cleanout openings on the side walls of setting which are over four feet above the floor or walkway. A permanent ladder need not be provided.

(i) One means of escape and where possible two means remote from each other shall be provided from every place where there is danger of employees being trapped in a confined space.