It is the custom of some of the National Committees to prepare a Quadrennial Report for the IUGG General Assemblies. Many of these have been comprehensive summaries of national activities in geodesy and geophysics that showcase the accomplishments of the past four years. However, in recent years it has become more difficult for the Adhering Bodies to find the resources to produce printed reports. In response to this reality, the IUGG Bureau has decided that all national reports should be posted on the Internet. Links to these national reports, as they are received, are presented below for easy access and reference not only by IUGG Members, but also by the scientific community at large.