In these Regulations—
"heavy machinery "includes any bulldozer, crane, excavator, forwarder, hydraulic log splitter, saw bench, skidder, skid steer loader, tractor and heavy vehicle;
"heavy vehicle" has the same meaning as in the Road Safety Act 1986 ;
"impermeable surface" means any surface which would prevent oil or fuel from being absorbed into the ground if spilled and includes a tarpaulin, tray or trailer;
"the Act" means the Crown Land (Reserves) Act 1978 ;
"watercourse" has the same meaning as in section 384 of the Land Act 1958 .