A person carrying on a prescribed process under an authorisation who wishes to make a relevant change in the process may at any time—
and a person making a request under paragraph (b) above shall furnish the enforcing authority with such information as may be prescribed or as the authority may by notice require.
On receiving a request under subsection (1) above the enforcing authority shall determine—
and the enforcing authority shall notify the holder of the authorisation of its determination of those matters.
Where the enforcing authority has determined that the proposed change would not involve a substantial change, but has also determined under paragraph (b) or (c) of subsection (2) above that the change would lead to or require the variation of the conditions of the authorisation, then—
Where the enforcing authority has determined that a proposed change would involve a substantial change that would lead to or require the variation of the conditions of the authorisation, then—
The holder of an authorisation may at any time, unless he is carrying on a prescribed process under the authorisation and wishes to make a relevant change in the process, apply to the enforcing authority in the prescribed form for the variation of the conditions of the authorisation.
A person carrying on a process under an authorisation who wishes to make a relevant change in the process may, where it appears to him that the change will require the variation of the conditions of the authorisation, apply to the enforcing authority in the prescribed form for the variation of the conditions of the authorisation specified in the application.
A person who makes an application for the variation of the conditions of an authorisation shall furnish the authority with such information as may be prescribed or as the authority may by notice require.
On an application for variation of the conditions of an authorisation under any provision of this section—
Any application to the enforcing authority under this section shall be accompanied—
This section applies to any provision other than a condition which is contained in an authorisation as it applies to a condition with the modification that any reference to the breach of a condition shall be read as a reference to acting outside the scope of the authorisation.
For the purposes of this section a relevant change in a prescribed process is a change in the manner of carrying on the process which is capable of altering the substances released from the process or of affecting the amount or any other characteristic of any substance so released.