Most initial stages of cave diving certifications do expire. Cave diving has its own way of issuing citations.
In the Cave Divers Forum there is currently a pretty contentious thread that was started by a cave diver who was accosted and cussed out on the surface because of the overall quality of his performance on the dive he had just completed. He referred to the Cave Diving police in his post. Well, the "policeman" responded with a pretty detailed description of the horrors he had witnessed. It's a new thread, and it will be interesting to follow, but I sure has heck would not want to be the one having my perceived diving deficiencies reported to my peers, and it would certainly make me reconsider things. this works because the cave diving community is so very small that word can get around very quickly.
That was a certified cave diver. What about going in without any training? In that case, there is a much more effective citation issued all too often. Although the number of people who dive in caves without appropriate training is considered to be very small, probably only a percent or two of the total cave dives made annually, they account for most of the fatalities.
I wasn't talking about cave certifications, and neither was the OP.
If an OW diver goes into a cave, they may be accosted when they come out, but there is no citation and their certification card is not revoked, or even suspended....even though I think it should be revoked