Schedule 3 amends the model clauses contained in the instruments specified in that Schedule.

Where a licence granted under the Petroleum (Production) Act 1934 (c. 36) or the Petroleum Act 1998 (c. 17), and in force immediately before commencement, incorporates model clauses amended by a paragraph of Schedule 3, the licence has effect with the amendments provided for by that paragraph of that Schedule.

The reference in subsection (2) to model clauses includes model clauses subject to any amendment or modification or with the omission of any model clause.

Where an amendment made by a paragraph of Schedule 3 confers a power to give a notice requiring the plugging and abandonment of a well, the power may not be exercised in relation to a well the drilling of which began before commencement.

Where an amendment made by a paragraph of Schedule 3 confers a power of revocation or partial revocation of a licence, that power may not be exercised by reason of an event which takes place before commencement.

A reference in any document to provisions of a licence which are amended by Schedule 3 is to be construed, unless the nature of the document or the context otherwise requires, as a reference to those provisions as amended.

A provision inserted in a licence by virtue of Schedule 3 may be altered or deleted by deed executed by the Secretary of State and the licensee or, as respects Scotland, by an instrument subscribed by the Secretary of State and the licensee in accordance with the Requirements of Writing (Scotland) Act 1995 (c. 7).

In this section “commencement”, in relation to a paragraph of Schedule 3, means the time when that paragraph comes into force.