21. In regulation 63 (reduced payments under section 17)—
(a)in paragraph (1)—
(i)in sub-paragraph (b)—
(aa)after the words “section 19(5)(b) or (c)” there shall be inserted the words “or section 20A(2)(b) or (c)”;
(bb)after the words “section 19(6)(a) or (b)” there shall be inserted the words “or section 20A(2)(d) or (e)”;
(ii)in sub-paragraph (c) after the words “section 19(5)(b)(i), (ii) or (iv)”, in both places where they occur, there shall be inserted the words “or section 20A(2)(b)(i), (ii) or (iv)”;
(iii)in sub-paragraph (d) after the words “section 19(5)(b)(iii)”, in both places where they occur, there shall be inserted the words “or section 20A(2)(b)(iii)”;
(b)in paragraph (4) after the words “section 19(5)(b)(iii)” there shall be inserted the words “or section 20A(2)(b)(iii)” and after the words “section 19(5)(c)” there shall be inserted the words “or section 20A(2)(c)”.