I know people have been looking & asking online, and I noticed it was not posted here yet... so here is the 2024 schedule for Challenge Cup & DriverZ Cup (since there is a lot of crossover).

Challenge Cup:
Mid-Ohio: April 26-28
Pittsburgh: June 7-9
Watkins Glen: June 29-30
New Jersey: July 25-28
Summit Point: August 16-18

DriverZ Cup:
Roebling Road: February 10-11
Carolina Motorsports Park: March 23-24
Summit Point: July 20-21 *tentative
Roebling Road: September 14-15
Road Atlanta: November 9-10