9. A person who proposes to have custody or control of silage, slurry or fuel oil that is to be kept or stored on a farm in a silo, slurry storage system or fuel storage area constructed, substantially enlarged or substantially reconstructed on or after the date these Regulations come into force must give the Environment Agency notice specifying the type of structure to be used and its location at least 14 days before the structure is to be used for such keeping or storage.