169.Section 51 places a new duty on the ORR to provide information and advice to the Secretary of State, to the Scottish Ministers and to the NAW in connection with their respective railways functions. Subsection (1) requires the ORR to meet the Secretary of State's reasonable requirements for information and advice and other assistance, including in connection with his railway safety functions. Subsection (2) imposes a similar requirement in relation to the Scottish Ministers in connection with their railway functions (which do not include railway safety functions). Subsection (3) imposes a requirement for the ORR to meet the reasonable requirements of the NAW for information and advice on its railway functions (which do not include railway safety functions).