Environmental Protection (Recovery of Vapours from the Transfer of Organic Liquids) Regulations 1995

before the transfer takes place, a vapour return hose of vapour‑tight construction is connected —

to the appropriate vapour return hose coupling on the delivery tank (except in the case of a permanently connected hose); and

to the appropriate vapour return hose coupling on, or associated with, the underground fuel tank;

the vapour return hose is not disconnected while the organic liquid is being transferred into the underground fuel tank;

the liquid transfer hose is not disconnected from the underground fuel tank while the hose contains any organic liquid; and

the connection or disconnection of any hose is done in such a manner as to avoid or minimise spillage of organic liquid.