3.Restrictions on relevant expenditure to be taken into account: general
4.First further rule: apportionment of relevant expenditure benefiting more than one property
5.Second further rule: restriction of relevant expenditure to the maximum amount
6.Third further rule: apportionment of relevant expenditure if a dwelling-house or building is owned jointly or in common or is subject to differing estates or interests
8.Revocation of the Energy-Saving Items Regulations 2007 (S.I. 2007/831)