SCHEDULE 2Permitted development rights
PART 17Mining and mineral exploration
Class D – coal mining development by the Coal Authority and licensed operators
Permitted developmentD
Development by a licensee of the Coal Authority, in a mine started before 1st July 1948, consisting of—
a
the winning and working underground of coal or coal-related minerals in a designated seam area; or
b
the carrying out of development underground which is required in order to gain access to and work coal or coal-related minerals in a designated seam area.