Glossary / Contracts
Contract Line Item NumberCLIN
Contract Line Item Numbers (CLINs) are four-digit identifiers used under the Uniform Contract Format to identify each priced item on a federal contract. CLINs are usually numbered 0001, 0002 and so on, and option periods often start a new series such as 1001. Sub-items are SLINs (sub-CLINs). Each CLIN has its own price, quantity, period of performance, and sometimes its own contract type, so a single contract can combine FFP CLINs for production with T&M CLINs for engineering services. CLIN structure is negotiated during award and becomes the basis for invoicing, funding, and reporting.
Why it matters to your pipeline
CLIN structure determines how you invoice, how the government tracks obligations, and how modifications affect you. A poorly structured CLIN list creates accounting headaches: unpriced options, single CLINs that span multiple colors of money, or CLINs that bundle too many deliverables. On cost-type contracts, CLINs also determine how fee is earned, so the structure is worth negotiating along with price.
When this term shows up in an opening GovSmith finds for you, your vCM explains what it means for that pursuit and does whatever it calls for. You decide; we do the work.
Example
A contract includes CLINs for base period services (0001), option year 1 services (1001), and surge hours (1002). The government exercises Option 1 but underfunds CLIN 1002. The contractor notices, requests additional funding before burning into a stop-work, and avoids a delay.
Find out what applies to you
Some terms will matter to your business right away and some won’t for years. A vCM can tell you which are which.