Every September, service contractors notice patterns in what agencies buy. Some offices award a full year of support in the last week of the fiscal year. Others insist a project be scoped so it can be finished and paid for all at once. Behind both behaviors is a single distinction that appropriations law draws between two kinds of services: severable and non-severable.
Understanding it will not make you an expert in appropriations law, and you should never give a buyer legal advice about their funds. But it will help you shape offers that fit the way money actually moves at year-end.
Two kinds of services
A severable service is one that can be divided into parts, each of which has value on its own. Janitorial work, help desk support, security guard services and routine maintenance are classic examples. If the contract ended after six months, the government still received six months of benefit.
A non-severable service produces a single result that has little value until it is complete. A study with a final report, the development of a specific software release or a one-time training program are typical examples. Half a report is not half as useful as a whole one.
How funding follows the distinction
The general rule, known as the bona fide needs rule, is that an appropriation available for one fiscal year may be used only for needs that arise in that year. Severable services are normally charged to the year in which they are performed. Statute carves out an important exception: an agency may award a severable services contract that crosses fiscal years, for a period of up to twelve months, and fund the whole period with money available when the contract is signed.
Non-severable services are treated differently. Because the government is buying a single outcome, the entire effort is funded from the appropriation current when the contract is awarded, even if the work carries into the following year.
The Government Accountability Office publishes its Principles of Federal Appropriations Law, often called the Red Book, which explains these rules in detail. It is public and worth a look for anyone who sells services to agencies.
What this means in September
The twelve-month rule explains why a buyer can award a year of severable support on September 28 using funds that would otherwise expire two days later. It also explains why that same buyer will usually resist a fourteen-month period, or an option structure that quietly extends the funded period beyond a year.
For non-severable work, a September award is fully funded up front. That is good news for the contractor, since the money is obligated, but the buyer will want a clear, bounded deliverable. A vague scope that looks like ongoing support makes the purchase harder to justify.
Shaping offers that fit
When a late-summer request asks for a defined period of recurring support, propose exactly that period, priced for a clean twelve months or less, with options only if the solicitation includes them. When a request describes a project, write your approach around a finished product with clear acceptance criteria. If a requirement seems to mix the two, ask a question during the question period rather than guessing.
Finally, keep the roles straight. The contracting officer decides what their funds can legally buy. Your role is to understand the shape of the purchase well enough to make saying yes easy.