Two years later, after some relaxation of the existing rules, Kubasov along with Georgy Grechko and Vladislav Volkov, were officially accepted into the newly established civilian cosmonaut corps.
İki yıl sonra, mevcut kuralların bir miktar rahatlamasından sonra, Kubasov, Georgi Grechko ve Vladislav Volkov ile birlikte yeni kurulan sivil kozmonot birliklerine resmen kabul edildi.