Semen collection centres must: 1. be placed under the supervision of a "centre veterinarian"; 2. have at least (a) lockable animal accomodation and if required for equidae an exercise area which are physically separated from the collection facilities, the processing room and storing room; (b) isolation facilities which have no direct communication with the normal animal accommodation; (c) semen collection facilities including a separate room for the cleansing and disinfection or sterilization of equipment; (d) a semen processing room separated from the collection facilities which need not necessarily be on the same site; (e) a semen storage room which need not necessarily be on the same site; ...