17.—(1) Subject to paragraph (2), the Secretary of State may revoke an exemption conferred by this Order under article 3, 4, 5 or 6 in relation to any person or railway asset to whom or to which the exemption applies.
(2) Before exercising the power conferred by paragraph (1) the Secretary of State must —
(a)serve notice in writing on the relevant person, or on the operator of the railway asset in question, as the case may be, and on TfGM, informing them of the intention to revoke the exemption in relation to that person or asset, and inviting them to make representations in writing to the Secretary of State within such period, not being less than 28 days from the service of the notice, as may be specified in the notice; and
(b)consider any representations so made.