4.—(1) Regulation 99 of the Housing Benefit Regulations shall be amended in accordance with the following paragraphs of this regulation.
(2) In paragraph (2) for the words “caused by” there shall be substituted the words “which arose in consequence of”.
(3) In paragraph (3) for the words “caused by official error” there shall be substituted the words “which arose in consequence of an official error”.
(4) In paragraph (4) after the word “revised” there shall be inserted the words “or superseded” and after the word “revision” there shall be inserted the words “or supersession”.