For the purposes of paragraph (a) in the definition of "relevant energy efficiency improvements" in section 46(4) of the Act, a relevant energy efficiency improvement is an energy efficiency improvement which—
falls within sub-paragraph (a) of the definition of "energy efficiency improvement" in regulation 2(1) and is listed in the Schedule to the Green Deal (Qualifying Energy Improvements) Order 2012, or
falls within sub-paragraph (b) of the definition of "energy efficiency improvement" in regulation 2(1).
For the purposes of paragraph (b)(iv) in the definition of "relevant energy efficiency improvements" in section 46(4) of the Act, an energy efficiency improvement is a relevant energy efficiency improvement where the cost of the improvement—
can be wholly financed, at no cost to the landlord, by means of funding provided by central government, a local authority or any other person,
can be wholly funded by the tenant making the tenant's request, or
can be wholly financed by a combination of two or more of the financial arrangements in sub-paragraphs (a) and (b), and paragraph (b)(i) and (ii) in the definition of "relevant energy efficiency improvements" in section 46(4) of the Act.