relevant successor authoritymeans, in connection with non-domestic rates payable to the abolished authority in respect of hereditaments situated in a part of its area, the successor authority for that part.
the 1989 Regulationsmeans the Non-Domestic Rating (Collection and Enforcement) (Local Lists) Regulations 1989;
the Discretionary Relief Regulationsmeans the Non-Domestic Rating (Discretionary Relief) Regulations 1989;
the principal Regulationsmeans the Local Government Changes for England (Finance) Regulations 1994;