126.9, I was thinking of renewing my SA ATPL, but was told by a flight school, (who also spoke to the CAA on my behalf), that as I had not renewed my licence in the previous 24 months', I definitely had to sit the law and procedures again. I didn't verify this personally with the CAA myself, but I wouldn't bet against it.(I also have two other current licences.)
It's not so uncommon with ICAO, as I know for a fact New Zealand also requires a resit of the law exam, if the licence has been dormant for over 5 years'.