5. In paragraph 9(2) of Schedule 6 to the Housing Benefit Regulations 2006(1), for paragraph (a) substitute the following—
“(a)paid in order to rectify, or to compensate for—
(i)an official error as defined in regulation 1(2) of the Decisions and Appeals Regulations, or
(ii)an error on a point of law; and”.
S.I. 2006/213; relevant amending instruments are S.I. 2005/2502, 2008/698, 2008/1082, 2013/630 and 2017/422.