These Regulations make amendments to the Non-Domestic Rating (Renewable Energy Projects) Regulations 2013 (S.I. 2013/108) (the “Principal Regulations”) consequential on the compilation of new non-domestic rating lists on 1st April 2023. The Principal Regulations operate on the basis that any increase in rateable value from 31st March 2013 can be attributed to a change in the hereditament or its use. When new lists are compiled, the rateable values of hereditaments are reassessed (a “revaluation”). Therefore, hereditaments may have seen changes in rateable value compared with 31st March 2013 without there necessarily having been a change to the hereditament. Regulations 4 to 9 of these Regulations amend the Principal Regulations so that, when comparing rateable values with those as of 31st March 2013, any changes attributable to a revaluation are not taken into account.