What is the test for equal protection in the context of discrimination in a disability classification case?

Assuming briefly that appellant has properly raised an equal protection argument, we find no merit to it. Normally, any rational classification or discrimination is presumed valid. That is, a statute is constitutional if the classification or discrimination it contains has some rational relationship to a legitimate government interest, unless the statute is based upon an inherently suspect classification, in which case the statute requires close judicial scrutiny. Graham v. Richardson, 403 U.S. 365, 371-72, 91 S.Ct. 1848, 29 L.Ed.2d 534 (1971).