The main purpose of the No Bias in the Baseline Act is to establish a clear and consistent method for calculating budget baselines in the United States. This legislation aims to ensure that future budget projections are based on current laws and the assumption that discretionary spending levels will remain the same, without adjustments for inflation or other factors. Key provisions of the Act include changes to how the budget baseline is defined. It specifies that the baseline will reflect current levels of new budget authority, spending, revenues, and deficits, based solely on existing laws.