(1) All portions of any ladder, including the steps, treads, and handholds, must be constructed of materials that are resistant to corrosion and the materials must be easily cleanable.

(2) Ladder steps must be sloped to drain.

(3) All ladder steps and treads shall have a slip-resistant surface.

(4) There shall be a uniform distance between ladder treads, with a seven inch minimum width. Except for the bottom riser, all ladder step risers at the centerline shall have a maximum uniform height of 12 inches.

(5) Ladder treads shall have a minimum horizontal uniform depth of two inches.

(6) All ladders shall be designed to provide two handholds and shall be securely attached to the side of the pool or spa. There shall be a clearance of three inches minimum and five inches maximum between the pool wall and the ladder.