The Environmental Permitting (England and Wales) Regulations 2016

4.  In paragraph (1)(d), “ anaerobic digestion” means the mesophilic and thermophilic biological decomposition and stabilisation of biodegradable materials which—

(a) is carried on under controlled anaerobic conditions,

(b) produces a methane-rich gas mixture, and

(c) results in stable sanitised material that can be applied to land for the benefit of agriculture or to improve the soil structure or nutrients in land.

Part A(2)

(a) Refining gas where this activity does not fall within Part A(1)(a) of this Section.

Part B

(a) Blending odorant for use with natural gas or liquefied petroleum gas.

(b) The storage of petrol in stationary storage tanks at a terminal, or the loading or unloading at a terminal of petrol into or from road tankers, rail tankers or inland waterway vessels.

(c) The unloading of petrol into stationary storage tanks at a service station, if the total quantity of petrol unloaded into such tanks at the service station in any 12-month period is likely to be 500m³ or more.

(d) Motor vehicle refuelling activities at an existing service station after the prescribed date, if the throughput of petrol at that service station in any 12-month period is or is likely to be in excess of 3,000m³.

(e) Motor vehicle refuelling activities at a new service station, if the throughput of petrol at that service station in any 12-month period is, or is intended to be in excess of 500m³.

(f) Motor vehicle refuelling activities at a new service station if the throughput of petrol at that service station in any 12-month period is, or is intended to be in excess of 100m³ and it is situated under permanent living quarters or working areas.

Interpretation of Part B