The requirements for handrails and grabrails in I2D4 were previously located in the Transport Standards.

I2D4 provides requirements for handrails and grabrails in public transport buildings. I2D4(2) provides that handrails must be placed along an accessway to assist wherever passengers are likely to require additional support or guidance, such as changes of level, ramps, a narrowing or a change of direction of an accessway. I2D4(4) provides, in particular, that a grabrail or handrail must be provided at fixed locations where passengers are required to pay fares.