Dear Colleague, I am writing to you because you have been identified as a principal contact for a US facility/project in radio and submillimeter astronomy (see the attachment for the tentative contact list). Please let me know if you are not the appropriate contact. As you are probably already aware, the Astronomy Division at the NSF plans to hold a senior review of its portfolio in the next 6-9 months as part of its mid- and long-range planning activities. In September, in my then capacity as AUI Board chair, I suggested that AUI, on behalf of the entire US radio community, sponsor a broad based activity to provide input into the NSF strategic planning exercise. Since the OIR community began a similar exercise last spring under NOAO (see http://www.noao.edu/dir/lrplan/lrp-committee.html), various members of the radio community felt it important to engage a small committee to review the current status of progress towards implementation of the recommendations of the 2000 Astronomy and Astrophysics Survey Committee in the fields of radio and submillimeter astronomy. In the meantime, the NSF has endorsed such an effort and has provided information on its context as a mechanism for community dialogue within the NSF strategic planning exercise. AUI has now convened such a group and has offered to provide limited logistical support for its activities. Because time and funding for this activity is limited and in order to insure the broadest representation, we decided to call upon the same individuals who participated in the NRC 2000 AASC panel on radio and submillimeter astronomy and were authors of its report. However, the current effort is not sponsored by the NRC; rather, the so-called "2005 Ground Based Radio and Submillimeter Astronomy Planning Group" has been convened by AUI, on behalf of the community. It is obviously of concern to all of us that this exercise have the benefit of broad radio and submillimeter community involvement and that our activities be known and understood to all interested parties. Significant communication is required, despite strong constraints on time and money. We will do our best to explain ourselves and to remain sensitive to the broad and diverse community needs. Please note that we currently do not have the resources to hold town meetings, project presentations and the like. This exercise is **not** of the same scale and scope as the Decadal Survey review. Therefore, we really need your help both in providing us with input in a form we can digest and also in disseminating understanding of our efforts to your colleagues and user communities. At present, we have had one kickoff telecon and are in the process of laying out our plan for preparing a brief report that provides community perspective to the NSF AST senior review process. To aid both in our own exchange and with communicating with you and the rest of the US radio and submillimeter community, we are making use of a website which you are invited to visit: http://www.astro.cornell.edu/~haynes/rmspg In order to facilitate our process at its present stage, we have some initial requests for useful input materials, details attached, to you as director/leader of a US radio/submillimeter project/facility. We recognize that some items might be easily provided while other information may need to be gathered specifically for this task; please try to provide the information in the form that you believe would be most valuable to us in the context of this planning group exercise. We'd appreciate your providing us with URLs to documentation rather than sending us long documents themselves. It would also be useful if you could provide the answers back following the outline below. Specificity/brevity will be most appreciated. We thank you in advance for the extra effort that will require! If you have comments or suggests as to this process and our activities, please feel free to contact any member of the planning group. We look forward to an informative exchange in this community effort. Best regards, Martha Haynes, on behalf of the 2005 Radio and Submillimeter Planning Group