Animals (Scientific Procedures) Act 1986

The Animals (Scientific Procedures) Act 1986 (A(SP)A 86) is an Act of the Parliament of the United Kingdom (1986 c. 14) passed in 1986, which regulates the use of laboratory animals in the UK. The Act permits experiments to be carried out on animals, including procedures involving vivisection, if certain criteria are met. The 1986 Act is the UK implementation of the European Directive EC 86/609, which is in the process of being revised.

The British Union for the Abolition of Vivisection argues that the Act is designed to protect researchers from prosecution for cruelty, rather than to protect the animals themselves. However, a select committee inquiry described the Act as the "tightest system of regulation in the world."