You are looking at a schedule called 'Regulations revoked' for the Crown Minerals Act 1991. This schedule lists regulations that are no longer in force. It includes the Coal Mining (Licensing) Regulations 1980, the Mining Regulations 1981, and an amendment to the Mining Regulations 1981. You can see the regulations that have been revoked are from different years. They are listed here because they are no longer part of the law. The regulations that have been revoked are: Coal Mining (Licensing) Regulations 1980, Mining Regulations 1981, and Mining Regulations 1981, Amendment No 3. These regulations are not part of the main act, but are included as extra information. They were once part of the law, but are now revoked. The schedule is part of the Crown Minerals Act 1991, which is a law about minerals and mining. You can find more information about the act and its schedules. The revoked regulations are listed to show which ones are no longer in force.