by WorldwideRailfan (Youtube)
I was recently looking at an MBTA F40 and I noticed a small bit of text to the right of the ladder used to climb into the cab. For most units it says "Class DEP-2B" or "Class DEP-3C." Does anybody know what this means? I also noticed that the "Class DEP-3C" classification doesn't necessarily mean the unit is an F40PH-3C. 1054, the first 3C says "Class DEP-2B."