Given the task definition and input, reply with output. Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : Its complete designation, SKS-45, is an initialism for Samozaryadnyj Karabin sistemy Simonova, 1945 (Russian: , 1945; Self-loading Carbine of (the) Simonov system, 1945).
Answer : 1945
Which was the official year for the approval of SKS?