The purpose of this guidance note is to guide policy makers on the use of CBA for policy proposals. It includes the following topics: risk analysis, cost-benefit analysis, assessments of compliance costs, assessments of competition effects, and consultation. The cost-benefit analysis (CBA) is an analytical tool that can be used to measure the economic and social impact of government action by reference to the 'net social benefits' that action might produce. BCA is a power analytical tool that can aid in decision making.