Federal law requires the President to submit an annual budget to Congress no later than the first Monday in February. The budget informs Congress of the President's overall federal fiscal policy based on proposed spending levels, revenues, and deficit (or surplus) levels. The budget request lays out the President's relative priorities for federal programs, such as how much should be spent on defense, education, health, and other federal programs. The President's budget may also include legislative proposals for spending and tax policy changes. While the President is not required to propose legislative changes for those parts of the budget that are governed by permanent law (i.e., mandatory spending), such changes are generally included in the budget. President Obama submitted his FY2015 budget to Congress on March 4, 2014.