The HSUS has an entire department devoted to pets, and to services for companion animals. It also has sections working to end dog-fighting, and to provide rescue and emergency services to animals at risk in animal fighting, hoarding, puppy mill enterprises and disasters. The HSUS Pets for Life program uses community-level outreach in a number of American cities, including Los Angeles, and Philadelphia, to raise retention levels and to improve the lives of companion animals and those who care for them, by providing veterinary services in zones where convenient and low-cost care is lacking. The HSUS is a strong supporter of "pets in the workplace" programs. HSUS publishes "Animal Sheltering", a bi-monthly magazine for animal sheltering professionals. It also operates the Humane Society Veterinary Medical Association, which provides free veterinary services for animals in impoverished communities. In 2013, the HSUS gave its Henry Spira Corporate Progress Award to the Consumer Specialty Products Association to recognize the antifreeze manufacturing industry's commitment to add a bittering agent to products so that animals would not die poisonous deaths, the subject of a long-running campaign by the HSUS. HSUS believes that, in general, wild animals are not suitable as pets, and opposes the general traffic in wild animals. HSUS has been an active opponent of the domestic and global puppy mill industry, and helped law enforcement agencies to confiscate more than 35,000 animals from purported puppy mills since 2007. HSUS has also pressed anti-puppy mill bills in states like Indiana, Missouri, Oklahoma, Pennsylvania, and Texas. The number of dog breeders licensed by the United States Department of Agriculture declined from 3,486 in 2009 to 2,205 in 2011. HSUS led the effort to secure adoption of a United States Department of Agriculture rule to prohibit the importation into the United States of dogs from foreign countries for resale unless the animals were in good health, vaccinated and at least 6 months old. Dog breeders opposed another measure supported by HSUS, to regulate the sale of dogs over the Internet. HSUS opposes the hunting of any living creature for fun, trophy, or sport. HSUS only supports killing animals for population control when carried out by officials and does not oppose hunting for food or subsistence needs. As a practical matter, HSUS has generally campaigned against abuses found in the treatment of wildlife. Its ballot initiatives focus on things like shooting bear over bait, hunting with hounds, and other forms of hunting the organization believes are unsporting. Together with its global affiliate, Humane Society International, HSUS has waged a decade-long fight to end the Canadian seal hunt.