I was hired at CO in February as a 1 time furloughed guy on the Guppy. I was based in DCA pre-furlough. I bid DCA 320FO in the latest bid so I could drive to work instead of flying and was denied due to a two year seat lock. Spoke with my flight manager and he confirmed the seat lock and showed it to me in the contract. It is quite clear that it is a two year seat lock for people returning from furlough.