Rulemaking power expanded to require expenditure indicators, medium-term expenditure framework disclosures, and revenue deficit specification post-transition. The amendment expands the rulemaking power under section 8 to require rules to prescribe expenditure indicators with underlying assumptions and risk, to include the Medium-Term Expenditure Framework Statement alongside the Fiscal Policy Strategy Statement, and to specify the percentage of revenue deficit to apply after the Act's transition date; the provision takes effect on presidential assent.