The 12 Members (Board of Directors) of the Conservation Authority are appointed by NBMCA's 10 member municipalities for a four-year term following each municipal election.  Representation on the board is based on the population of the municipality located within the watershed. 

NBMCA is a non-share corporation, established under Section 3 of the Conservation Authorities Act, with the objects to provide, in the area over which it has jurisdiction, programs and services designed to further the conservation, restoration, development and management of natural resources in watersheds in Ontario other than gas, coal and minerals.

Under the Act, municipalities within a common watershed can petition the province to establish a conservation authority.  NBMCA was formed in 1972.

Based on Section 2 (2) of the Conservation Authorities Act, the Participating Municipalities appoint the following number of members:
City of North Bay - 3 members
Municipality of Callander - 1 member
Municipality of Calvin - 1 member
Municipality of East Ferris - 1 member
Municipality of Mattawan - 1 member
Municipality of Powassan - 1 member
Town of Mattawa - 1 member
Township of Bonfield - 1 member
Township of Chisholm - 1 member
Township of Papineau – Cameron - 1 member

Board members authorize NBMCA’s programs and policies, which staff is responsible for implementing. 

The 2022-2026 Board members are listed below.