All, A PDF version of the Prox-1 GB is now available on the public folder within the CWE area of SLS-SLP. Please go to http://public.ccsds.org/sites/cwe/sls-slp/default.aspx to see and download it. I appreciate your comments on this green book. We will discuss them at our SLS-SLP meeting in Rome. thanks, Greg Kazz Chairman SLS-SLP WG