(1) The Minister may amend a geothermal tenure at any time by giving its holder a notice of the amendment and recording particulars in the relevant register if the amendment--
(a) is to correct a clerical error; or
(b) is to state, or more accurately state, the boundaries of the area of the geothermal tenure because of a survey carried out under section 133.
(2) The Minister may at any time amend a condition of the geothermal tenure if its holder agrees in writing.
(3) Despite subsections (1) and (2), the following can not be amended under this section--
(a) the mandatory conditions for that type of geothermal tenure;
(b) the geothermal tenure's term;
(c) any work program or development plan for the geothermal tenure.
(4) Also, the Minister can not amend the geothermal tenure in a way that would make a provision of the tenure--
(a) inconsistent with the mandatory conditions for that type of geothermal tenure; or
(b) the same as, or substantially the same as, or inconsistent with, any relevant environmental condition for the tenure.