can anyone help with these EAL level descriptors??

[CrockedPot]

Below S1
S1
2c
3c
4c
L1T

And do you know how they fit into the CEF framework?
Any help very gratefully received - I am currently in FE and we use the Pre-Entry, E1 E2 etc levels for ESOL...not sure where the above corresponds!
TIA

They come from the 'Language in Common' document qca published in 2001 or 2001. Google it.