May 28, 2021 - NMCA Tech Committee makes 2021 mid-season rule adjustments The NMCA Technical Committee has updated the 2021 class rules in the following classes to reflect mid-season changes.

• Factory Super Cars
• Xtreme Street
• Nostalgia Super Stock
• Nostalgia Muscle
• Street King
• Rumble

These rule changes are effective (June 15^th, 2021). Thanks to everyone for their input on these changes. The 2021 NMCA Class Rules can be found here: https://www.nmcadigital.com/2021-class-rules-payouts/