The Town and Country Planning (General Permitted Development) (England) Order 2015

Permitted development
This section has no associated Explanatory Memorandum

E.  Development by a licensee of the British Coal Corporation, 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.