reg 19 Risk assessment
(1) A transport operator shall— (a) make a suitable and sufficient assessment of the risks to the safety of any persons for the purpose of identifying the measures he needs to take to ensure safe operation of the transport system in question insofar as this is affected by his operation; and (b) implement the measures referred to in sub-paragraph (a). (2) When carrying out an assessment or a review under paragraph (1) or (3), a transport operator shall apply the CSMs to the extent that the operation is carried out on the mainline railway. (3) Any assessment under paragraph (1) shall be reviewed by the transport operator who made it if— (a) there is a reason to suspect that it is no longer valid; or (b) there has been a significant change in the matters to which it relates and where as a result of any such review changes to an assessment are required, the transport operator concerned shall make them, and implement any changes to the measures identified pursuant to paragraph (1) as a result of the review. (4) The transport operator shall record in relation to any assessment or review under this regulation— (a) the assessment process undertaken, the methods of any calculation used and any assumptions made; and (b) the significant findings of the risk assessment including the measures in place and any further measures the transport operator intends to take to ensure safe operation of the transport system in relation to his operation. (5) Every transport operator shall make and give effect to such arrangements as are appropriate, having regard to the nature of his activities and the extent of the undertaking, for the effective planning, organisation, control, monitoring and review of the measures identified pursuant to paragraph (1) or (3) and shall record such arrangements.