Morning Alan,
Your question got me curious too so I took a look around. Info on ITE does seem rather hard to come by!
I found our rules refer us to the Great Lakes Division rules for ITE. After no luck searching the Great Lakes Division site, I did a Google search for Great Lakes Division ITE Rules and came up with the following link:
https://dk1xgl0d43mu1.cloudfront.net/us ... 1488573098
See page 6 in the document the link above takes you to.
To make it even easier, here is the total rule set contained in the Great Lakes Division ITE Rules:
GREAT LAKE DIVISION ITE RULES
A.Cars prepared for any past or current recognized showroom stock based amateuror professional racing series, not eligible for any current SCCA Club Racing class.
B.Drivers must have the rule book and be able to prove compliance to the seriesrules the car is prepared to.
C.All cars must run DOT approved tires.
D.Cars must meet minimum safety requirements defined in the GCR and ITCSfor Improved Touring.
That's all I could find. Hope that helps...
Tim