(1) Where any enactment passed either before or after this Act specifies the form of any document or any form of words which is to be or may be used for an official or public purpose, the appropriate Minister may by order prescribe a version of the document or words in Welsh, or partly in Welsh and partly in English, for use for that purpose in such circumstances and subject to such conditions as may be prescribed by the order.
(2) Any power to specify such a form of document or words as is mentioned in subsection (1) of this section which is conferred, whether in express terms or otherwise, by any enactment passed either before or after this Act shall include power to prescribe such a version of the document or words as is there mentioned for use for the purpose in question in such circumstances and subject to such conditions as may be prescribed by the instrument by which the power is exercised.
(3) In this section “ the appropriate Minister ” means, in relation to any enactment—
(a) in the case of an enactment for the execution of which in Wales a Minister other than the Secretary of State is responsible, that Minister; and
(b) in any other case, the Secretary of State,
and any question arising under this subsection shall be determined by the Treasury.