One year back I processed PCC. At that time the procedure is as below :

PCC Need to apply at CEID department at Salwa road.

Documents required are :

1. "Immigration clearance" (In case of Sponsorship change, the form shall be signed by present & Future employer and attested by Immigration,)
2. Education certificate attested by Qatar foreign affairs ministry (Located near Gulf signal)
3. Passport copy with RP page
4. Letter from future employer
5. Copy of "Immigration clearance"

CEID Dept. Working hours : 6:30 to 12:30
Time taken to issue the PCC : 3 working days.

Note : PCC will be directly handed over to future employer

I hope the above details are helpful for you.

All the best.