CBO's models vary in complexity—from spreadsheet calculations to large-scale simulation models. To promote transparency, the agency releases data, computer code, and documentation associated with its models. On this website, every Topics page (such as the Budget page) includes a subsection with explanations of analytical methods (such as those related to the budget), as does the Transparency page.
When practicable, modeling details are posted on CBO's GitHub page in repositories that are listed here. Users can examine them and explore outcomes under alternative scenarios.