They provide services for the Chatham Islands, including:

• local roads and footpaths
• water
• sewerage system
• rubbish, recycling and landfills
• parks and sportsfields
• recreation centres, libraries and pools
• dog registration
• civil defence
• social housing.

They also provide regional council activities including:

• environmental monitoring
• biosecurity
• maritime safety
• oil spill response
• navigation and safety.