31.—(1) Amend Article 50 (alteration in the valuation list by Commissioner) as follows.
(2) For “the valuation list” in each place where it occurs substitute “a valuation list”.
(3) In paragraph (1)(a), for head (iv) substitute the following head—
“(iv)to show the net annual value of the hereditaments occupied by a dock authority which are mentioned in Part X of Schedule 12 or by a holder of a licence or an exemption under Part II of the Electricity (Northern Ireland) Order 1992 or Part II of the Gas (Northern Ireland) Order 1996 or by a water undertaker or sewerage undertaker;”.
(4) In the heading to that Article omit “the”.