then by the Alkali, &c. Works Regulation Act 1892, and subsequently by the Alkali, &c. Works Regulation Act 1906. There were subsequent amendments. The Alkali Act 1863 was formally repealed by section 30 of Alkali, &c. Works Regulation Act 1881 (44 & 45 Vict c 37), though the substance was consolidated in the this and later acts. The Alkali Act were finally replaced by the Environmental Protection Act 1990. Timeline The Inspectorate has worked under the purview of many different departments: From 1863 to 1872, the Board of Trade From 1873 to 1918, the Local Government Board From 1919 to 1951, the Ministry of Health From 1951 to 1970, the Ministry of Housing and Local Government From 1970 to 1975, the Department of the Environment The Chief Inspector's independence disappeared when the Inspectorate was transferred to the Health and Safety Executive in 1975. The Inspectorate was known as Industrial Air Pollution Inspectorate from 1983 to 1987 and became Her Majesty's Inspectorate of Pollution (HMIP) when it was transferred back to the Department of the Environment in 1987. HMIP became part of the Environment Agency and Scottish Environment Protection Agency on 1 April 1996. Together with amendments, the Alkali Act became the main legislative control of industrial pollution in the UK. It was finally repealed and replaced by the Environmental Protection Act 1990. References A Collection of the Public General Statutes passed in the Twenty-sixth and Twenty-seventh Years of the Reign of Her Majesty Queen Victoria. Printed by George Edward Eyre and William Spottiswoode. London. 1863. 635 to 639. George Pitt Lewis, assisted by H A de Colyar, "Jurisdiction and Proceedings under the Alkali Act, 1863". A Complete Practice of the County Courts. Stevens and Sons. London. 1880. Part 2. Book 5. Division 1. Chapter 2. Pages 909 to 914. Baker, Thomas. "Alkali Works Act". The Laws Relating to Public Health, Sanitary-Medical-Protective. 1865. Page 62. See also page 591 to 595. Pollock and Nicol. "The Alkali Act, 1863". Pollock's Practice of the County Courts. Sixth Edition. H Sweet. London. 1868. Page 4. See also pages 763 to 766. "The Alkali Act, 1863". Report of the Ministry of Housing and Local Government 1959. Cmnd 1027. HMSO. Page 35. See also the rest of chapter 4, "The Alkali Inspectorate" at page 33 onwards. Google Books. http://www.glossary.com/reference.php?q=Alkali%20Act%201863 Environmental law in the United Kingdom United Kingdom Acts of Parliament 1863 1863 in British law 1863