The situation in the BNC cleanroom has reached a point where unsafe situations are occurring and research activities are being delayed due to poor citizenship of the BNC cleanroom users. Numerous complaints from users have been received, and the staff has had to spend a significant amount of time remediating situations where a user did not clean up after him/herself. To provide further information and to discuss this issue, a MANDATORY cleanroom-user meeting will be held on Tuesday, August 4, 2009, in MRGN 121 at 10:00 AM. A makeup session will be held on Monday, August 10, 2009, also at 10:00 AM in MRGN 121. Attendance at one of these meetings is required, or cleanroom access will be terminated. It is sincerely hoped that the discussions at this meeting will improve the working conditions in the cleanroom. We cannot operate in an unsafe manner, and if corrections are not made further, more drastic, actions must be taken. One item currently under consideration is closing the cleanroom from midnight through 7:00 AM. I hope these issues can be resolved without resorting to such drastic measures. Thank you in advance for assisting in making the BNC a safe, efficient environment in which to perform research. John Weaver