(1)  An improvement notice served by a rail safety officer –

(a) may be withdrawn by notice served by a rail safety officer on the person affected by the notice; and

(b) may be amended by any rail safety officer, by notice served on the person affected by the notice.

(2)  An amendment of an improvement notice is effected by service on the person affected of a notice stating the terms of the amendment.

(3)  An amendment of an improvement notice served on a person is ineffective if it purports to deal with a contravention of a different provision of the rail safety law from that dealt with in the improvement notice as first served.

(4)  A notice of an amendment of an improvement notice must –

(a) state the reasons for the amendment; and

(b) include information about obtaining a review under Part 10 of the decision to amend the notice; and

(c) state that it is served under this section.