each unit of the quarantine establishment must:
be located at a secure distance from surrounding establishments or other places where animals are kept to avoid transmission of contagious animal diseases between resident and quarantined animals;
start the required quarantine period when the last animal of the batch is introduced into the quarantine establishment;
be emptied of animals, cleaned and disinfected at the end of the quarantine period for the last batch and then be kept free of animals for a period of at least seven days before a batch of animals that has entered into the Union from third countries and territories is introduced into the quarantine establishment;
litter must be removed when a consignment of animals is moved from an enclosure, and it must be replaced by fresh bedding, after the cleansing and disinfecting operations have been completed;
fodder, litter, faeces and urine must not be collected from the premises unless they have been subject to an appropriate treatment in order to avoid the spread of animal diseases;
precautions must be taken to prevent cross-contamination between incoming and outgoing consignments of animals;
animals released from the quarantine establishment must comply with Union requirements for movements of kept terrestrial animals between Member States.