From the summary of Congressional Budget Resolutions: Historical Information (Nov. 16, 2015 RL30297):
The Congressional Budget Act of 1974 (Titles I-IX of P.L. 93-344, as amended; 2 U.S.C. 601-688) provides for the annual adoption of a concurrent resolution on the budget each year. The congressional budget resolution represents a budget plan for the upcoming fiscal year and at least the following four fiscal years. As a concurrent resolution, it is not presented to the President for his signature and thus does not become law. Instead, when adopted by Congress, the budget resolution serves as an agreement between the House and Senate on a congressional budget plan. As such, it provides the framework for subsequent legislative action on budget matters during each congressional session.