In regulation 1(2) of the Social Security (Guardian’s Allowances) Regulations (Northern Ireland) 19755 (interpretation) for the definition of “determining authority” there shall be substituted the following definition—

• ““determining authority” means, as the case may require, the Department, an appeal tribunal to which there is a right of appeal pursuant to Article 13 of the Social Security (Northern Ireland) Order 1998 or a Commissioner to whom an appeal lies under Article 15 of that Order;”.