As more and more resources become available on the Internet, some applications need to acquire geographic location information about certain resources or entities. These applications include navigation, emergency services, management of equipment in the field, and other location based services. But while the formatting and transfer of such information is in some sense a straightforward process, the implications of doing it, especially in regards to privacy and security, are anything but. The primary task of this working group will be to assess the authentication, integrity, and privacy requirements that arise as a result of the transfer of such information. Once this is done the working group will proceed to devise a protocol framework that meets these requirements. In addition, the working group will define the actual format used to represent the geographic location of an identifiable entity. The combination of these two elements should provide a service capable of transferring geographic location information in a private and secure fashion. For interoperability reasons, a single absolute/default format shall be specified that must be supported by all SLO-aware entities. This format shall have (at least) a location specified in earth-based coordinates (Longitude, Latitude, and Altitude) and a Timestamp when these values were last known. An existing format standardized elsewhere may be used if one is appropriate. In addition, a framework for adding any optional geographic location representations shall be defined. The working group will not define any optional geographic location representation formats. (If necessary defining optional representation(s) can be a future work effort.) There must also be a security mechanism selected/designed for SLO Payloads. The security mechanism must be supported by all SLO-aware entities.