(1) For the heading of section 21 substitute— “ “Biodegradable waste”, “municipal waste” and “local authority collected municipal waste” ” .
(2) In section 21—
(a) for subsection (2) substitute—
(2) In this Chapter—
(a) “ biodegradable municipal waste ” means waste that is both biodegradable waste and municipal waste; and
(b) “ biodegradable local authority collected municipal waste ” means waste that is both biodegradable waste and local authority collected municipal waste.
(b) in subsection (3), for “subsection (2)” substitute “ this section ” ; and
(c) after subsection (3) insert—
(4) In subsection (2) “ local authority collected municipal waste ” means any municipal waste which is collected under arrangements made by a waste collection authority or a waste disposal authority.
(5) In subsection (4) “waste collection authority”—
(a) in relation to England and Wales and Scotland, has the same meaning as in Part 2 of the Environmental Protection Act 1990 ;
(b) in relation to Northern Ireland, means a district council.