There are National Focal Points for GCOS and related Climatological Data in more than 130 countries. An updated list of national focal points is availabe at the WMO CountryProfile Database.

Their Terms of Reference are:

• Liase within the National Meterological and Hydrological Services on GSN and GUAN issues related to data availability and quality;
• Inform Lead Centres on current and potential problems that might impact data availability and quality;
• Respond to requests from Commission for Basic Systems (CBS) Lead Centres for GCOS Data regarding data availability and quality.