The Formula V8 3.5 Series will race at the Circuit of The Americas in Austin, Texas the first time next year in support of the FIA World Endurance Championship weekend in September.
Formula V8 3.5 is currently embarking on its inaugural campaign, emerging from the ashes of the Formula Renault 3.5 series in 2015 after it lost manufacturer backing.
Earlier this year, it was announced that the single-seater series would be linking up with the WEC in 2017 as a support championship, appearing on the undercard at six rounds.
On Saturday, series officials confirmed that as well as racing at Silverstone, Spa and the Nürburgring alongside WEC, Formula V8 3.5 would also be visiting Austin, Mexico City and Bahrain in 2017.
Fuji Speedway in Japan had originally been slated to host a round of the 3.5-litre series, only for the race to be moved to Austin on grounds of costs.
During its Formula Renault 3.5 days, the championship produced a number of current Formula 1 drivers including Sebastian Vettel, Daniel Ricciardo, Kevin Magnussen and Carlos Sainz Jr. Its final champion was Oliver Rowland, who now races in GP2.
The addition of Formula V8 3.5 to the WEC weekend at COTA ensures that the endurance series will not race alone following the break-up of the Lone Star Le Mans double-header with IMSA for 2017.