I'm not necessarily against these, either. From NBC TV in LA:
LOS ANGELES -- A county ordinance requiring most dogs in unincorporated Los Angeles County to be spayed or neutered and implanted with an identifying microchip will go into effect Saturday.Under the ordinance, all canines must have a microchip the size of a grain of rice placed underneath their skin. The chip would identify a dog in the event it runs away and ends up at an animal shelter.
The Los Angeles County Department of Animal Care and Control will offer free microchips this weekend at shelters in Downey, Gardena, Baldwin Park, Lancaster, Castaic and Agoura Hills.
The ordinance also requires most dogs to be spayed or neutered. Though the ordinance will go into effect Saturday, dog owners have a 90-day grace period to neuter their animals.
The spay/neuter requirement applies to all breeds, excluding animals that compete in dog shows, work with law enforcement or assist the disabled.
Canines must be spayed or neutered at four months of age.
The measure will also increase annual dog license fees. A license for a spayed or neutered dog will increase from $15 to $20. Licenses for unaltered dogs will double to $60.