1976, 1985, 1990, 2002, 2007, 2008, and 2013) and is enforced by the USDA through the Animal Care division of APHIS (Animal and Plant Health Inspection Service). In 1970, the Act was amended (Pub.L. 91–579) to include all warm-blooded animals used in testing, experimentation, exhibition, as pets or sold as pets. Certain cases could be exempted from such definitions unless they used live animal in substantial numbers. Fines were increased for those interfering with an investigation of an experimentation facility. Those found guilty of assaulting or killing Federal inspectors responsible for such tasks also faced additional sentencing. Basic treatment was expanded to include humane and reasonable handling of the animals, and required shelter from weather and temperature extremes, proper ventilation, adequate housing, decent sanitation, and adequate veterinary care at all stages in the animal's life. The Act was further amended in 1976 (Pub.L. 94–279) to further regulate animal treatment during transportation. Animals were to be kept in adequately sized traveling accommodations, and to be kept from fighting amongst one another. The definition of animal was broadened to rid the law of the possible interpretation that dogs used for hunting, security, and breeding were not included in its protection. The Act was amended in the Food Security Act of 1985 (Pub.L. 99–198). Under this law, it was not permitted for a single animal to be used in more than one major operative experiment, from which it was also allowed adequate time to recover as guided by a veterinarian with proper training. This amendment directed new minimum standards for the handling, housing, sanitation, feeding and other care practices. The psychological well-being of the animals was now taken into consideration as it never had been before. One provision that stood out at this time was the requirement for the exercise of dogs and psychological well being of primates. The law also requires research facilities to be able to describe painful practices as well as implement practices that minimize pain and stress to the animals. Another requirement made under this law was for each research facility to establish an Institutional Animal Care and Use Committee (IACUC) to oversee research proposals and provide oversight of animal experimentation. The Food Security Act also established an information center at the National Agricultural Library, the Animal Welfare Information Center, to assist researchers in searching scientific literature for alternatives to animal use. In 1990, The Food, Agriculture, Conservation, and