In this Schedule—

• “combustion unit” means a stationary technical unit in which fuels are combusted (and includes all types of boiler, burner, turbine, heater, furnace, incinerator, calciner, kiln, oven, dryer, engine, fuel cell, chemical looping combustion unit, flare and thermal or catalytic post-combustion unit);

• “hazardous waste” means—

  1. a

     in relation to an installation in Northern Ireland or UK coastal waters adjacent to Northern Ireland, hazardous waste for the purposes of regulation 6 of the Hazardous Waste Regulations (Northern Ireland) 2005 M1;

  2. b

     in relation to an installation in Scotland or UK coastal waters adjacent to Scotland, special waste within the meaning of regulation 2 of the Special Waste Regulations 1996 M2;

  3. c

     in relation to an installation in Wales or UK coastal waters adjacent to Wales, hazardous waste for the purposes of regulation 6 of the Hazardous Waste (Wales) Regulations 2005 M3;

  4. d

     in any other case, hazardous waste for the purposes of regulation 6 of the Hazardous Waste (England and Wales) Regulations 2005 M4;

• “municipal waste” has the meaning given in section 21(3) of the Waste and Emissions Trading Act 2003 M5.

For the purposes of this Schedule, a combustion unit or installation that uses only biomass as a fuel includes a combustion unit or installation that uses fossil fuels only during start-up or shut-down of operations.