| Imperial Act Adopting Ordinance 1847 | 1847 (10 Vict. No. 8) |  Official Version |  Word |  HTML | |
| Imperial Acts Adopting Act 1836 | 1836 (6 Will. IV No. 4) | Official Version | Word | HTML | |
| Imperial Acts Adopting Act 1844 | 1844 (7 Vict. No. 13) | Official Version | Word | HTML | |
| Imperial Acts Adopting Ordinance 1849 | 1849 (12 Vict. No. 21) | Official Version | Word | HTML | |
| Imperial Acts Adopting Ordinance 1867 | 1867 (31 Vict. No. 8) | Official Version | Word | HTML | |
| Indian Ocean Territories (Administration of Laws) Act 1992 | 054 of 1992 | Official Version | Word | HTML | |
| Industrial Arbitration Act 1979 | 114 of 1979 | Official Version | Word | HTML | |
| Industrial Hemp Act 2004 | 001 of 2004 | Official Version | Word | HTML | |
| Industrial Lands (CSBP & Farmers Ltd.) Agreement Act 1976 | 031 of 1976 | Official Version | Word | HTML | |
| Industrial Lands (Kwinana) Agreement Act 1964 | 093 of 1964 (13 Eliz. II No. 93) | Official Version | Word | HTML | |
| Industrial Lands (Kwinana) Railway Act 1966 | 015 of 1966 | Official Version | Word | HTML | |
| Industrial Relations Act 1979 | 114 of 1979 | Official Version | Word | HTML | |
| Industry and Technology Development Act 1998 | 013 of 1998 | Official Version | Word | HTML | |
| Infants' Property Act 1830 (Imp) | 1830 (11 Geo. IV & 1 Will. IV c. 65) | Official Version | Word | HTML | |
| Information Commissioner Act 2024 | 052 of 2024 | Official Version | Word | HTML | |
| Infrastructure Western Australia Act 2019 | 013 of 2019 | Official Version | Word | HTML | |
| Inheritance (Family and Dependants Provision) Act 1972 | 057 of 1972 | Official Version | Word | HTML | |
| Inspector of Custodial Services Act 2003 | 075 of 2003 | Official Version | Word | HTML | |
| Insurance Commission of Western Australia Act 1986 | 051 of 1986 | Official Version | Word | HTML | |
| Integrity (Lobbyists) Act 2016 | 015 of 2016 | Official Version | Word | HTML | |
| Interpretation Act 1984 | 012 of 1984 | Official Version | Word | HTML | |
| Iron Ore Agreements Legislation (Amendment, Termination and Repeals) Act 2011 | 062 of 2011 | Official Version | Word | HTML | |
| Iron Ore (Channar Joint Venture) Agreement Act 1987 | 061 of 1987 | Official Version | Word | HTML | |
| Iron Ore (Cleveland Cliffs) Agreement Act 1964 | 091 of 1964 (13 Eliz. II No. 91) | Official Version | Word | HTML | |
| Iron Ore (FMG Chichester Pty Ltd) Agreement Act 2006 | 044 of 2006 | Official Version | Word | HTML | |
| Iron Ore (Goldsworthy-Nimingarra) Agreement Act 1972 | 030 of 1972 | Official Version | Word | HTML | |
| Iron Ore (Hamersley Range) Agreement Act 1963 | 024 of 1963 (12 Eliz. II No. 24) | Official Version | Word | HTML | |
| Iron Ore (Hope Downs) Agreement Act 1992 | 062 of 1992 | Official Version | Word | HTML | |
| Iron Ore (Marillana Creek) Agreement Act 1991 | 002 of 1991 | Official Version | Word | HTML | |
| Iron Ore (McCamey's Monster) Agreement Authorisation Act 1972 | 104 of 1972 | Official Version | Word | HTML | |
| Iron Ore (Mount Bruce) Agreement Act 1972 | 037 of 1972 | Official Version | Word | HTML | |
| Iron Ore (Mount Goldsworthy) Agreement Act 1964 | 097 of 1964 (13 Eliz. II No. 97) | Official Version | Word | HTML | |
| Iron Ore (Mount Newman) Agreement Act 1964 | 075 of 1964 (13 Eliz. II No. 75) | Official Version | Word | HTML | |
| Iron Ore (Murchison) Agreement Authorisation Act 1973 | 050 of 1973 | Official Version | Word | HTML | |
| Iron Ore Processing (Mineralogy Pty. Ltd.) Agreement Act 2002 | 026 of 2002 | Official Version | Word | HTML | |
| Iron Ore (Rhodes Ridge) Agreement Authorisation Act 1972 | 036 of 1972 | Official Version | Word | HTML | |
| Iron Ore (Robe River) Agreement Act 1964 | 091 of 1964 (13 Eliz. II No. 91) | Official Version | Word | HTML | |
| Iron Ore (Wittenoom) Agreement Act 1972 | 038 of 1972 | Official Version | Word | HTML | |
| Iron Ore (Yandicoogina) Agreement Act 1996 | 065 of 1996 | Official Version | Word | HTML | |
