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 This schedule lists regulations that are no longer in force.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 You can see the regulations that have been revoked are from different years. They are listed here so you know what regulations are no longer in effect. The regulations that have been revoked are specific ones. They include the Coal Mining (Licensing) Regulations 1980 and the Mining Regulations 1981. The Mining Regulations 1981 also had an amendment that has been revoked. These regulations are part of the Crown Minerals Act 1991. You can look at the act to learn more about the regulations. The revoked regulations are listed in the schedule so you know what is no longer in force.