Isobella Nashville, TN 9/14/2009 5:20:33 PM This is a magnificent law!! It would cut out backyard breeders, puppy mills ,reduce the number of animals in shelters and restrict and ( hopefully !) inspect the remaining breeders. Spaying and neutering can be safely done as early as 9 weeks and should be done by six months ,before sexual maturity. My dogs were done at five months,four months and three months. No problems!