The only rule I could find about plates is <R19>:
Is there any rule that says teams with multiple robots registered need to keep the same plate number throughout the season. I know this would be nearly impossible to monitor and sometimes students leave a team and others take over that robot/Plate ID#, or a fellow team copies the design of a robot which has qualified.
But let’s say team 99999X and 99999Y go to an event and 99999X qualifies, 99999Y does not win a match. The next weekend at a different event, the same students and the same robot which at the last event had the plate number 99999X now have the plate number 99999Y on their robot and it is clear the plates got switched to try and qualify 99999Y. This is not fair to other teams and especially not fair to the students who were originally 99999Y. Those students should be helped to make their robot more competitive, not sent the message they are not good enough to qualify on their own.
It would be nice if <R19> had a
c. Team ID# Plates should not be swapped between teams.
Even if in reality this would be really hard to enforce, nonetheless, it would be great to see it just like: <G1> Common sense always applies
<R19> To participate in an official VEX Robotics Competition Tournament a team must first register on
robotevents.com. Upon registering they will receive their VEX Team Identification Number (VEX Team ID#)
and a welcome kit containing VEX Team Identification Number Plates. Every robot should have their VEX
Team ID# Plates displayed on a minimum of 2-opposing sides.
a. The VEX Team Identification Number Plates are considered a non-functional decoration, and
cannot be used as a functional part of the robot.
b. These number plates must fulfill all robot rules (i.e. they must fit within the 18” cube per <R4>,
they cannot cause entanglement, etc.)