6.—(1) Where, at the time of serving on a person any notice demanding council tax for a relevant year in respect of a dwelling, it appears to a local authority that water services charges are payable by that person in respect of that dwelling and have not yet been demanded, it shall include a demand for those charges in that notice.
(2) No notice demanding water services charges in respect of a dwelling shall be served prior to service of any notice required to be served in respect of that dwelling and the relevant year under regulation 17(1) of the 1992 Regulations.
(3) Prior to service by a local authority of any such notice as is referred to in paragraph (1), that authority shall take reasonable steps to ascertain whether water services charges are payable in respect of the dwelling to which the notice relates.
(4) Where—
(a)Scottish Water—
(i)begins to provide any water supply and sewerage services to a dwelling on any day in a relevant year subsequent to 1st April; or
(ii)ceases to provide any services to a dwelling on such a day; and
(b)it appears to Scottish Water that as a consequence, water charges or sewerage charges begin or, as the case may be, cease to be payable in respect of that dwelling,
Scottish Water shall so advise the local authority for the area in which the dwelling is situated.