# The Railways (Rateable Value) Order (Northern Ireland) 1997, Article 6: Redetermination of net annual value


For the year ending 31st March 1999 and each subsequent year, the net annual value of a hereditament consisting of the properties to which Part IV applies shall be calculated in accordance with the formula:—
A×O488.66 where—
A is the net annual value of the hereditament for the year immediately preceding the year in question; and
O is the total length of railway track measured in kilometres, for the year in question, occupied by the Company and used primarily for the conveyance of railway traffic.

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Source: https://www.legislation.gov.uk/nisr/1997/106/article/6 (the official version)
Page: https://openlegislation.uk/railways-rateable-value-order-northern-ireland-1997/article-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.