Permitted uses of SMRs

SMRs may only be used as follows, and in any combination, regardless of the nature of the reinstatement materials in the layers above or below:

At any position within the surround to apparatus or backfill, as the entire layer or combined with any other permitted backfill materials, in any proportion, within any reinstatement;
As a sub-base within any reinstatement;
As a combined sub-base and base within any reinstatement in road Types 1, 2, 3 & 4 and as base within any reinstatement in road Types 3 & 4;
As a combined sub-base and binder course, within any reinstatement in footways, footpaths and cycle tracks.