The Civil Service Commissioners for Northern Ireland are appointed by statute and their function, roles and responsibilities are laid out in the:
- Civil Service Commissioners (NI) Order 1999
- Civil Service Commissioners (Amendment) (Northern Ireland) Order in Council 2003
- Civil Service Commissioners (Amendment) (Northern Ireland) Order in Council 2007
- Civil Service Commissioners for Northern Ireland General Regulations 2007
- Civil Service Commissioners (Amendment) Order (Northern Ireland) 2016