The Research Section develops and conducts research programs that are focused on responsible and sustainable management of marine resources. The Economic Development Section promotes the increased use of offshore and inshore marine resources. The Policy and Resources Management Section sets policy guidelines for the marine sector. The main office is on Rarotonga and additional offices are on Penrhyn, Aitutaki and Manihiki. MMR staff are also on Pukapuka, Rakahanga and Palmerston.
Island councils are able to draft regulations concerning the management of their reefs and lagoon.