Article 3 Single-phase credit meters

The certification under the provisions of the Schedule of 1899 of any single-phase credit meter of a type described in column 1 of Schedule 1 hereto at any time during the period set out in relation thereto in column 2 of that Schedule shall, if it has not previously ceased to have effect, cease to have effect at the end of the period prescribed in relation thereto in column 3 of that Schedule beginning with the date of the certification, or on the date prescribed in relation thereto in that column, should that be earlier.