Headquartered in Durham, North Carolina, it serves Moore, Lee, Chatham, Orange, Durham, Wake, and Johnston counties.
In 2023, TJCOG underwent a rebranding and name change, and is now known as CPRC.
The commission's original members were Durham, Orange and Wake counties, and the cities of Chapel Hill, Durham, and Raleigh.
When the North Carolina General Assembly established 18 regional planning councils in 1972, the Research Triangle Regional Planning Commission was reorganized as the planning council for Region J, which consisted of Durham, Orange, Wake, Chatham, Johnston and Lee counties.
Moore County was added when the planning commission for Region H was abolished.