R311.7.12.2 Handrails of ship’s ladders
Handrails shall be provided on both sides of ship's ladders [...]
Handrails shall be provided on both sides of ship's ladders [...]
Treads shall have a depth of not less than 5 [...]
ship's ladders shall not be used as an element of [...]
Handrails shall be provided on both sides of alternating tread [...]
Alternating tread devices shall have a tread depth of not [...]
Alternating tread devices shall not be used as an element [...]
Stairways serving bulkhead enclosures, not part of the required building [...]
The clear width at and below the handrails at spiral [...]
Spiral stairways and bulkhead enclosure stairways shall comply with requirements [...]
Interior stairways shall be provided with an artificial light source [...]