The rule for uniform numbers is the same in high school and college. 00 and 0 are allowed, but not both. Also, only digits from 0 to 5 are allowed, so CSI did a lazy job with that plot. The only basketball rule sets where digits 6 and up are allowed are NBA (2 hands used for numbers greater than 5) and FIBA (2 hands for numbers greater than 5, and reversing the hands to show that a given digit is in the tens place).
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