In section 12 of the Forestry Act 1967 (which, for cases where a felling licence from the Forestry Commissioners is required and is granted by them, specifies conditions which may be attached to the grant but, by subsection (2), prohibits the imposition of conditions in the case of land subject to a forestry dedication covenant or agreement), at the end of subsection (2) there shall be added the words “and the felling is in accordance with a plan of operations or other working plan approved by the Commissioners and in force under the covenant or agreement”.