CIE has formal arrangements with several international and regional organizations, these arrangements are supported by liaison at the administrative level of these organizations. CIE also has working liaisons with both these and other organizations at the technical level, these working liaisons can be found within the Division pages of this website.
- CCPR – Consultative Committee for Photometry and Radiometry
- CEN – European Committee for Standardization
- CIPM – International Committee for Weights and Measures
- Euramet
- GLA – Global Lighting Association
- IALD – International Association of Lighting Designers
- IEC – International Electrotechnical Commission
- ISO – International Standardization Organization
- LUCI – Lighting Urban Community International