After successful completion of a stallion performance test (at least 70 days, stallions owned by the State Stud Celle are tested for 11 month) at a sanctioned stallion testing station with the required score the stallion will receive his breeding license. This test will be offered to three-year old stallions. As a four-year old this stallion can breed without any limitations. A Hanoverian stallion successfully completes his performance test, if he receives a score of 90, a non-Hanoverian stallion must receive a score of 120, in addition a stallion form Holstein must receive a score of at least 130 in the jumping index. A refining stallion (English or Arabic Thoroughbred, an Arab, an Anglo-Arab), which has not fulfilled the racing requirements, must complete the test either with an overall score of 100, or with an overall score of 90 plus a score of 110 in either the dressage or the jumping index. 

If a stallion is to be used for breeding while he is three years old, which means before a successful completion of the 70-day test, this stallion has to successfully complete a 30-day suitability test. A Hanoverian stallion must receive at least 7,0 in either the dressage oriented or the jumping oriented final score. A non-Hanoverian stallion has to receive an 8,0. The stallion will then be permitted to breed no more than fifty mares during his first year of breeding.