Law Concerning Driving A Righthand Vehicles In Nigeria

Hi all,
Did anyone know what the law is concering driving a right hand vehicle in 9ija.Although, I do know that you're allowed to drive a RHD vehicle for 90 days(3 months) dated from day it was cleared but not sure if this is still thesame or has changed.   

Upon all the sharp men for Nairaland,no get the answer to Q.
The worst be say no body fit get Customs or Road safety contact to ask the Q.
See the ridiculous website without contact information

http://www.roadsafetynigeria.com/index.html