1.  In regulation 1(2)(1) (interpretation)–

(a)the definitions of “the 1975 Act” and “adjudication officer” shall be omitted;

(b)after the definition of “the 1986 Act” there shall be inserted the following definition–

““the 1998 Act” means the Social Security Act 1998;”;

(c)for the definition of “Commissioner” there shall be substituted the following definition–

• ““Commissioner” has the meaning it bears in section 39(1) of the 1998 Act;”; and

(d)for the definition of “tribunal” there shall be substituted the following definition–

““tribunal” means an appeal tribunal constituted under Chapter I of Part I of the 1998 Act;”.