ms Seven Seas Mariner is a passenger cruise ship with identification IMO number 9210139, MMSI number 311622000 and call-sign number C6VV8, registered in the Bahamas. The cruise ship is owned by NCL Norwegian (since 2014) and operated by Regent Seven Seas Cruises. The vessel debuted in 2001.
IRC 2003 Handrail height, measured vertically from the sloped plane adjoining the tread nosing, or finish surface of ramp slope, shall be not less than 34 inches (864mm) and not more than 38 inches (965 mm).
Code Requirements for Handrails at Exterior Stairs. Code requirements for exterior handrails are designed to guarantee health and safety standards for people using stairs. Handrails provide users with support and balance. Code requirements for handrails on exterior stairs are similar to those of inside stairs. Code requirements are a starting point for designers and builders. If the use given to stairs and their context require it, include additional handrails and improve safety measures.