6. For the period beginning on and including 29th July 2013 and ending on the date on which the new calculation rules come into operation for all purposes the Child Support Maintenance Calculation Regulations (Northern Ireland) 2012(1) shall read as if—
(a)in regulation 33(2) (general rule for determining gross weekly income) after sub-paragraph (b) there were added—
“or
(c)the Department is unable, for whatever reason, to request or obtain the required information from HMRC.”;
(b)in regulation 41(1)(a) (estimate of current income where insufficient information available) after “33(2)(b)” there were added “or (c).”; and
(c)in regulation 68(5) (non-resident parent with unearned income) after sub-paragraph (b) there were added—
“or
(c)the Department is unable, for whatever reason, to request or obtain the information from HMRC.”.