Unknown Abbreviations

[RandomSteep]

Hello, I have a friend going through the interview process (he's a Spanish AF pilot) and he's asking what the following are:

Date of Last LPC
Latest Date for LST

I want to say the LPC is some type of landing check, but since I'm a USAF pilot, I'm not familiar with these particular acronyms.

Thank you.

[One9iner]

Line Proficiency Check & License Skills Test.

[redsnail]

Licence Proficiency Check
You do this one every year, it's the equivalent of the instrument rating renewal and a few other bits and pieces thrown in.

Licence Skills Test.
This is the final sim/flight for the endorsement.