All years done.
http://foxchassis.com/decoders/vin/ssp/
That is a mirror of the decoder on this site except it will now also indicate known info. For example, for 1982 CHP VIN 1FABP10F7CF213064 it will say
Confirmed as: California Highway Patrol, Unit #E870204 and then do the normal VIN decoding.
I can remove "Confirmed as", or put "SSP" after the agency, etc. Just let me know.
Throw some VINs at it and see if anything funky gets returned. When we're satisfied that it works as intended I give the changed modules to Mike for this site.