The North American Formula 1000 Championship began in 2017 as a series running within the SCCA Formula B (FB) class at SCCA Majors races at select venues located primarily in the Eastern United States.

The first North American Formula 1000 Championship race was held at Road Atlanta in March 2017.

In May 2018 the SCCA suddenly and without warning or notice to the SCCA membership came out with a Car Count Criteria which specified how many Major (national) race entries each racing car class needed to maintain its National Championship Runoffs status.

As most F1000 (FB) drivers were competing in SCCA regional race events (which at the time was a route to the National Runoffs) as part of the North American F1000 Championship there was no opportunity to raise the Major race entry numbers in time by the end of 2018 to maintain SCCA National Runoffs status for F1000 (FB).

As a result of this F1000 (FB) lost its National Runoffs status and many F1000 (FB) competitors decided to leave SCCA club racing entirely and compete with the North American F1000 Championship after it left SCCA Club Racing to compete as part of the Formula Race Promotions group.

The last year F1000 (FB) competed as a class at the SCCA National Championship was in 2019 when 1 (one) car showed up.

In 2010, the West Coast-based F1000 Pro Series was formed with the participation of several F1000 manufacturers to help promote F1000 racing in the Western US.

The format for the US Formula 1000 championship called for each of the championship series (East and West) to run an equal number of events independently of each other as part of the SCCA SafeRacer national racing program, with points to be awarded based on in-class finishing positions at each event.

The series first race was held as a joint East–West shootout event at the Circuit of the Americas in Austin, Texas on March 9, 2013, and was won by Lawrence Loshak in a JDR F1000.

Most provide cars race ready complete with engine and data system package.

Purpose-built manufacturers include Stohr, Firman, Phoenix, JDR, Astra, Speads, Philadelphia, Edge, and Elan.

Others provide modified upgrade designs for existing purpose built cars.