There were some questions regarding the Buddy Policy, especially regarding the use of solvent hoods after hours. Please see this new release that explains that it is recommended - but not required - that you have a buddy present when working after hours in the cleanroom or laboratories if you are not using an acid hood. If you are using an acid hood, it is required that a buddy be present. John John R. Weaver Facility Manager Birck Nanotechnology Center 1205 West State Street West Lafayette IN 47907 (765) 494-5494 jrweaver@purdue.edu<mailto:jrweaver@purdue.edu> nano.purdue.edu