Here ya go....all the legal stuff about how much and where. Havent had time to read, but here it is.
5 The Petroleum-Spirit (Motor Vehicles etc.) Regulations 1929 exempt certain quantities of petrol kept in metal containers from licensing
requirements. The petrol must only be kept for the purposes of refuelling internal combustion engines and must not be for sale.
6 Up to 275 litres of petrol can be kept in any one storage place without a licence. The allowable quantity is reduced when the petrol is kept in or
near buildings, or near public thoroughfares or other flammable substances (see below). In calculating the 275 litre limit, the petrol in the fuel
tanks of vehicles in the storage area is included in the total.
7 Metal containers must be constructed so as to be reasonably secure against breakage and to prevent leakage of liquid or vapour. They should be
marked with the words "petroleum-spirit" and "highly flammable".
8 The maximum container capacity for keeping petrol is 10 litres unless the following conditions are met:
a) the storage place is more than 6m from a building, highway or public footpath,and;
b) there is spillage retention at the storage place (eg retaining wall, trench), and;
c) the licensing authority is given written notice of the storage place before it is used.
This does not include petrol in the fuel tank of a vehicle.
9 Note that there is no restriction on the number of containers that can be kept as long as the 275 litre maximum limit is not passed.
10 If the storage place is less than 6m from any building, stack of timber or other inflammable substance it can only be kept in the fuel tank of a
vehicle and up to two 10 litre containers on a motor vehicle, motor boat, aircraft or hovercraft unless notice in writing is given to the licensing
11 Where petrol is kept in a building (or a place attached to a building) used as a dwelling or place where people assemble, there must be a
substantial floor or partition separating the petrol storage from the rest of building. The floor or partition must not be readily inflammable. Where
the partition (not a floor) has an opening it must be fitted with a self closing door made of fire resisting material. In these circumstances a
maximum of two 10 litres containers can be kept. Petrol in the fuel tank of a vehicle is not included in this amount.
12 The Petroleum-Spirit (Plastic Containers) Regulations 1982 allow plastic containers to be used as well as metal. They exempt from the need for a
licence certain amounts of petrol kept in plastic containers for the purposes of refuelling internal combustion engines and not for sale.
13 For storage in plastic container without a licence the containers must:
a) be constructed of suitable materials;
b) have maximum capacity of five litres;
c) be designed and constructed properly;
d) have appropriate markings or labels;
and the quantities that can be stored are:
i) two containers can be kept on any motor vehicle, motor boat, aircraft or hovercraft;
ii) plus two further containers can be in a safe place in any domestic premises;
iii) plus two more containers can be kept in any other safe place at least 6m from the first.
These quantities are in addition to any petrol kept in metal containers.
edit on 30-3-2012 by caitlinfae because: quote