The depositories defined in 4° of article R. 5142-1 carry out their activities under the conditions set out in a written contract which, in accordance with the good practices provided for in article L. 5142-3 applicable to these activities, sets out the respective obligations of the depository and the operator on whose behalf it is acting. They may only distribute batches of veterinary medicinal products which have been released by the pharmacist or veterinarian responsible for the company which manufactures or imports them.