145.Section 34 makes two detailed amendments to Schedule 12 of the Electricity Act 1989, which allows the Secretary of State to give financial assistance in connection with cleaning‑up after nuclear activities. The first brings the scope of Schedule 12 (which already covers the decommissioning of an installation licensable under the Nuclear Installations Act 1965) into line with the concepts of decommissioning and cleaning up of nuclear installations and principal nuclear sites under this Act. The second provides that the Secretary of State’s power to give financial assistance under Schedule 12 does not apply where the NDA has financial responsibility under section 21 of this Act.