In August 1938 the High War Council, let by People's Commissar for Defense, K. J. Voroshilov, discussed the A-20 and T-32. Many on the Council disliked the T-32 as it didn't have the wheel track feature they were wanting. Stalin however saw the validity of Koshkin's argument and backed the A-32. In July 1939, the Kharkov Locomotive Factory had completed the prototypes for the A-20 and T-32. They were both then tested and it was decided to go with the T-32. On December 19, 1939, the People's Commissariat for Defense released the T-32 to the Red Army. It was soon designated the T-34.
In 1939 tests were conducted with the T-32 and A-20 and the T-32 was selected as it had better fire power and armor.