Recommendation 21

HM Treasury’s Green Book guidance on business case appraisal makes clear that plans for monitoring and evaluation should be proportionately included in each spending proposal that is submitted.44 Departments approaches vary in how much they choose to take these plans into account as part of their approval decision.45 DLUHC updated its business case template to include a requirement to provide details of any ring-fenced costs for impact evaluation of all investments of more than £100 million, and for smaller investments which are innovative, contentious or untested.46 Reporting on cross-cutting outcomes