Regulation 4 Divisions of register
The register of a drainage board shall, in addition to any other parts prescribed by this regulation, contain one part, called Part I, in which, subject to paragraph (3), there shall be inserted particulars of all annual value properties and split rating units in the district.
The register shall contain a further part, called Part II, relating to hereditaments in the district assessed on the rateable value thereof and, where an order is in force under section 24(6) of the Act of 1930 dividing the district into sub-districts, a copy of the order shall be set out at the end of Part II.
The register shall contain a further part called Part III where—
an order under section 24(7) of the Act of 1930 is in force exempting any portion of the district from drainage rates, in which case no particulars of any hereditaments in that portion of the district need be inserted in Part I; or
an agreement has been made pursuant to section 25 of the Act of 1961 between the drainage board and the rating authority for any area, which is for the time being in force.