The rule is, one class change in 10 years. Dan has a 1st Junior, if he wishes he can send back the 1st Junior badge and compete in HPOF or DPC. If he switches to HPOF or DPC he must remain there for 10 years. This is all new for 2013. I haven't had anyone send back a 1st Junior badge, don't know why they would, however I have had HPOF badges come back so the vehicle could be placed in class Judging. Lynn Gawel