This category of government expenditure refers to the portion of the federal budget that Congress can alter each year during the appropriations process. It contrasts with mandatory spending, which is determined by existing laws. Examples include funding for defense, education, transportation, and scientific research. The allocation of these funds is determined annually, subject to congressional approval.
The significance of this form of government spending lies in its flexibility and responsiveness to evolving national priorities and economic conditions. It allows policymakers to adjust funding levels based on current needs and political considerations. Historically, debates surrounding its allocation have reflected shifting societal values and differing perspectives on the appropriate role of government.