It looks like residential landlords could be faced with another requirement that could cost them an additional £100-£500 extra per year.
From 25 October 2019 the provisions of the Act relating to electrical safety checks will come into force for the purpose of making regulations. This does not mean that landlord electrical safety checks will come into force then, the power will simply apply to let the Secretary of State make regulations about how those checks will occur. However, those regulations should be expected not long afterwards and are likely to come into force sometime next year.