I see this is a fairly old topic but thought I would throw my 2 cents in anyway. I am not entirely sure of the exact requirement for storing the pre-shift inspections although I know we keep a hard copy of the past 12 months worth of inspections available and then digitize them all after that timeframe. At the same time we are a forklift distributor and not your average user but I will see if I can do some additional digging on this topic.