The Welsh Ministers may by regulations prescribe the procedure to be followed in connection with—
The regulations may include provision—
The regulations may include provision about the procedure to be followed—
and may provide that such steps are to be treated as compliance, in whole or in part, with the requirements of the regulations.
The regulations may—
The regulations may also make provision as to the circumstances in which—
The Welsh Ministers may by regulations provide that in prescribed circumstances a matter may not be raised in proceedings on an appeal made under or by virtue of this Act to the Welsh Ministers unless it has been previously raised before a prescribed time or it is shown that it could not have been raised before that time.