Federal contract vehicles explained: what an IDIQ, GWAC, GSA Schedule and BPA each are, the FAR rules behind them, and how orders get competed. Four shapes cover almost every federal contract vehicle. Here is what an IDIQ, GWAC, GSA Schedule and BPA each are, and what a seat really buys you. Federal contract vehicles are pre-competed contracts that let an agency buy from a named set of companies without running a full new procurement each time. Four shapes cover nearly all of them. An IDIQ sets limits and issues task or delivery orders against them. A GWAC is an IDIQ for information technology that one agency runs on behalf of the whole government. A GSA Schedule is a long-term commercial catalogue any qualified firm can join. A blanket purchase agreement is a charge account for repeat buying. Winning a seat on any of these does not win you work. It wins you the right to compete for orders inside a much smaller field. This guide covers what each one is, which rules govern it, and what changes in how you write. What Federal Contract Vehicles Are The FAR never uses the word vehicle. It uses indefinite-delivery contract, multiple-award contract, and Federal Supply Schedule. Agencies and industry adopted the shorthand because all of these do the same job. They move the hard competition to one event, the master award, and let later buying ride on that record. FAR 2.101 (https://www.acquisition.gov/far/2.101) gives the cleanest map. It defines a multiple-award contract in three parts. The first is a Multiple Award Schedule contract issued by GSA. The second is "a multiple-award task-order or delivery-order contract issued in accordance with FAR subpart 16.5," which includes governmentwide acquisition contracts. The third covers any other indefinite-delivery, indefinite-quantity contract the government enters into with two or more sources under one solicitation. Those three parts are the three families below. ! Two stages side by side: a master award that happens once and sets a ceiling with a guaranteed minimum, then every order, which happens many times under fair opportunity among awardees (https://mhhifytmrlyksfrjacvi.supabase.co/storage/v1/object/public/blog-images/2026/10/federal-contract-vehicles-figure.png) The money arrives at the second stage, which is why a master award by itself changes nothing on your books. The IDIQ Contract FAR 16.501-2 names three types of indefinite-delivery contract: definite-quantity, requirements, and indefinite-quantity. The IDIQ is the third and the one most people mean. FAR 16.504(a) (https://www.ecfr.gov/current/title-48/chapter-1/subchapter-C/part-16/subpart-16.5) provides for "an indefinite quantity, within stated limits" of supplies or services over a fixed period. Two numbers define it. The contract must r
Four shapes cover almost every federal contract vehicle. Here is what an IDIQ, GWAC, GSA Schedule and BPA each are, and what a seat really buys you.
Federal contract vehicles are pre-competed contracts that let an agency buy from a named set of companies without running a full new procurement each time. Four shapes cover nearly all of them. An IDIQ sets limits and issues task or delivery orders against them. A GWAC is an IDIQ for information technology that one agency runs on behalf of the whole government. A GSA Schedule is a long-term commercial catalogue any qualified firm can join. A blanket purchase agreement is a charge account for repeat buying. Winning a seat on any of these does not win you work. It wins you the right to compete for orders inside a much smaller field. This guide covers what each one is, which rules govern it, and what changes in how you write. What Federal Contract Vehicles Are The FAR never uses the word vehicle. It uses indefinite-delivery contract, multiple-award contract, and Federal Supply Schedule. Agencies and industry adopted the shorthand because all of these do the same job. They move the hard competition to one event, the master award, and let later buying ride on that record. FAR 2.101 (https://www.acquisition.gov/far/2.101) gives the cleanest map. It defines a multiple-award contract in three parts. The first is a Multiple Award Schedule contract issued by GSA. The second is "a multiple-award task-order or delivery-order contract issued in accordance with FAR subpart 16.5," which includes governmentwide acquisition contracts. The third covers any other indefinite-delivery, indefinite-quantity contract the government enters into with two or more sources under one solicitation. Those three parts are the three families below. ! Two stages side by side: a master award that happens once and sets a ceiling with a guaranteed minimum, then every order, which happens many times under fair opportunity among awardees (https://mhhifytmrlyksfrjacvi.supabase.co/storage/v1/object/public/blog-images/2026/10/federal-contract-vehicles-figure.png) The money arrives at the second stage, which is why a master award by itself changes nothing on your books. The IDIQ Contract FAR 16.501-2 names three types of indefinite-delivery contract: definite-quantity, requirements, and indefinite-quantity. The IDIQ is the third and the one most people mean. FAR 16.504(a) (https://www.ecfr.gov/current/title-48/chapter-1/subchapter-C/part-16/subpart-16.5) provides for "an indefinite quantity, within stated limits" of supplies or services over a fixed period. Two numbers define it. The contract must r