20. In regulation 42 (allowance not payable)–
(a)in paragraph (1) for the words “an allowance” there shall be substituted the words “disability living allowance by virtue of entitlement to the mobility component”; and
(b)in paragraph (3)–
(i)for the words “mobility allowance” there shall be substituted the words “disability living allowance”; and
(ii)for the words “allowance specified in paragraph 3A of Part III of Schedule 4 to the Social Security Act 1975” there shall be substituted the words “mobility component of disability living allowance to which, apart from paragraph (1), he would be entitled”; and
(c)in paragraph (4)(c) for the words “mobility allowance” there shall be substituted the words “disability living allowance by virtue of entitlement to the mobility component”.