Thought I would put this together since the required decals are kinda all over the place and specified as different sizes between the CCR and Spec E30 rules. For the numbers I took the larger of the 2 rules.
CAR NUMBERS
Side Numbers
2 * The side numbers must be at least ten (10) inches tall with a one and a half (1.5) inch stroke
Front and Rear Numbers
2* The front and rear numbers must be at least five (5) inches tall
NAME DECALS
The driver or drivers’ last name shall be placed in block print white letters 3 inches tall centered on each rear quarter panel window and on the lower passenger side front windshield. The side window space is roughly 25 inches wide
FIRE EXTINGUISHER / System Required Decal
All cars must display one (1) “E” decal on the outside of the vehicle identifying the
location of the fire extinguisher. The decal should be placed closest to the entry point of
the vehicle where the fire extinguisher is most accessible from the outside. This decal
indicates to someone assisting the driver where the easiest access point is located. Car
builders should give careful consideration to this item. On vehicles with fire systems,
one (1) decal is required at the release button, as well as and one (1) on the outside of
the vehicle.
TOYO TIRES DECALS
Four "Toyo Tires" decals (2"x18" size) must be on the car. One decal must be placed on each side of the car as well as one on the front and one on the rear .
To order the toyo decals: call (according to the Team Toyo receptionist): (800) 678-3250 x1171 (Angela)
NASA DECALS
You must run 4 NASA decals one on front, back and sides. I believe you can get these when you get to the track.
SPEC E30 DECALS - Not Required
Contact Carter Hunt to get these decals. There are large and small sizes. He accepts paypal and will ship them to you. Alot of people run the large one at the top of the rear window.