Thanks Jeff! But I don't really know how old they are. I bought them all this year from hobby lobby, Menards and off Amazon. All in original packaging. All are opened except for coastliner only because I just got that one two days other than that I don't have the packaging. So how can I find out when they were produced?

I recently bought 5 ready to run train sets with ez track. They are the rail chief, rocket freight, overland limited, strike force and coastliner. All dc and ho scale but I was wondering if the 4 emd gp40 and the 4-8-4 locomotives are dcc ready?