
Hi,
Depends on the breeder - won't swear that I have the exact detail right, but general concept since the rule change is that those who register less than 5 litters a year are not subject to any ruling on year between litters etc. Those who register 5 or more litters cannot register two litters to same bitch within 1 year, no grace of a few days if seasons are early, no application from vet if special circumstances allowed. Limits on top/bottom age limits and no more than 6(?) litters per bitch apply to all, I believe.
Think that's right, sure someone will soon tell me if I'm wrong.
M.