Following rigorous debates on the floor of parliament and what some classes as a pin pong exercise, the bill was passed after undergoing several policy changes and amendments.
The governing New Patriotic Party (NPP) promised during the 2016 election campaign to pass the Bill if it won power.
The NPP government has since it came into office being under pressure from civil society groups to pass the Bill into law.
The implementation of the RTI in Ghana has been estimated to cost GHc 750 million over five years, according to a report by the Research Department of Parliament in 2017, Citinewsroom reported.
The RTI Bill was first drafted in 1999 under former President, Jerry John Rawlings.