(1) The controller may vary the number of stock that may agist on the miners common (the varied carrying capacity) as follows--
(a) if the controller reasonably believes there are more stock on the miners common than it can support--by reducing the number of stock that may agist on the common;
(b) if the controller reasonably believes the common can support more than the number of stock agisted on the common without adversely affecting future agistment--by increasing the number of stock that may agist on the common.
(2) The controller must apply the varied carrying capacity in a way that ensures, as far as is reasonably practicable, no existing or prospective agistment approval holder is treated more favourably than any other approval holder.
(3) Subsection (1)(b) does not authorise the controller to increase a person's agistment approval beyond 20 head of stock.