You can choose any pfas provided it meets the osha requirements in section 1926 502 d.
Osha roof ladder requirements.
What about landing platforms.
The minimum perpendicular clearance between the center line of fixed ladder rungs cleats and steps and any obstruction on the climbing side of the ladder shall be 30 inches 76 cm except as provided in paragraph a 15 of this section.
Under the new regulations a ladder over 24 feet high will require a personal fall arrest system or ladder safety system.
Although a current osha requirement our fall protection inspection teams see ladders that do not pass the simple climbing width regulation of a minimum of 16 inches.
Per osha 1910 23 b 4 ladder rungs steps and cleats have a minimum clear width of 16 inches measured before installation of ladder safety systems for fixed ladders.
Inside faces of wells on the climbing side of the ladder must extend between 27 inches 68 cm and 30 inches 76 cm from the centerline of the step or rung.
Wells must completely encircle the ladder.
The requirements for wells for fixed ladders are as follows.
Wells must be free of projections.
Installing fall protection personal fall arrest systems ladder safety systems cages wells on existing fixed ladders over 24 feet that do not have any fall protection by november 19 2018.