- President's Budget: Presented to Congress each year at the beginning of the calendar year (January or February) for the next fiscal year that begins October 1, and outlines the President's spending priorities (President proposes, Congress disposes).
- Budget Resolution: Broad outline of spending for the year developed by House and Senate and agreed to by both bodies but not signed by President. It is not a law and is non-binding, although allocations of funds to appropriators follow Budget Resolution outlines in most cases. Sometimes outlines a five-year (or longer) plan. There are occasions when previous budget resolutions have either been ignored in terms of spending limitations or not passed in the first place.
- Appropriations: Annual spending legislation. After the Budget Resolution passes, each of the 13 subcommittees is given their 302(b) funding allocations for the year (13 separate funding bills). The appropriations bills are then drafted to stay within those allocations. Those bills should be passed before October 1, the beginning of the next fiscal year.
- Authorization: Authorizing committees deal with legislation to authorize or constitute programs. Authorizing language sets out parameters for uses of funds for the programs and usually sets a dollar amount for funding for the first year of the law, followed by four more years at "such sums" as Congress decides.
With the passage of the Budget Resolution by the House and Senate, the overall budget plans for the next few years are outlined. Once the plan is in place, allocations to the 13 appropriations subcommittees will be set out. The fiscal year begins October 1, so attempts will be made to finish voting on those bills by October 1. If some major appropriations bills - like the Labor, Health and Human Services Education bill - are unfinished and the fiscal year begins, continuing resolutions are passed to keep the government going until the bills are finished.
There are always some unknown factors that could influence spending either now or in future years. Defense spending is also a part of the budget pie as are mandatory expenses like Medicare, Medicaid, Social Security, and other entitlements.
In addition, there are occasions requiring supplementary appropriations bills to cover emergency spending for farm relief because of drought or weather-related catastrophes or other emergencies.
In summary, what the Budget Resolution does is make an outline or plan for spending and then, within those guidelines; the legislation is formulated and passed to appropriate (or designate) specific dollar amounts for that spending.
At the same time, Congress passes laws that authorize programs. Without the authorizing legislation, it is much harder to get programs appropriated for or funded. We also ask for funding for those programs, because appropriations are only passed for a year at a time. So every year programs must be funded; but every five years or so, Congress must scrutinize the laws authorizing those programs to decide whether or not to keep, change or eliminate them.
Library program funds are distributed through the Institute of Museum and Library Services to each state. The Library Services and Technology Act (LSTA) is part of the annual Labor, Health and Human Services and Education Appropriations bill.