Elisa Hedman

Puppies stay with their mother until eight weeks, and a dog may change owner only after it has been microchipped.

No more than three litters in 24 months, puppies from 50 days, litter records, and a microchip before any puppy is offered for sale.

Only registered breeders may breed and sell dogs, pet shops may not sell them, and no dog changes hands unidentified.

Breeding dogs for sale is banned outside national pedigree organizations, and puppies may be sold only where they were bred.

A permit for commercial breeding, one carer per five breeding dogs, puppies with their mother until eight weeks, and a ban on Qualzucht.

Puppies must be microchipped and registered within 60 days and may not be sold under two months or unregistered.

Breeder status and a SIREN number from the first puppy sold, sale over eight weeks, required ad details and a seven-day buyer certificate.

São Paulo State: breeding from 18 months, two pregnancies a year, puppies sold from 120 days with microchip and vaccinations.

No federal breeder law; Mexico City requires breeder registration, sales only in authorized premises and a purchase certificate with the microchip.

Breeders register with the State Board; mating from 18 months to eight years, one litter a year, five in total, sale from eight weeks.