Fall 2009 National Meeting & Exposition238th ACS National Meeting & ExpositionAugust 16-20, 2009Washington, DC, USAhttp://portal.acs.org/portal/acs/corg/content?_nfpb=true&_pageLabel=PP_TRANSITIONMAIN&node_id=2053&use_sec=false&sec_url_var=region1&__uuid=dc70c54a-02f5-49c9-b7e8-3d03c8d601d7Join us in Washington, DC, the nation"s capital and a vibrant international city, for a rich exchange of scientific research. By attending symposia, poster sessions, and workshops, meeting attendees will experience the most exciting and cutting-edge research that the field of chemistry has to offer. The overarching multidisciplinary theme for this meeting is "Chemistry and Global Security: Challenges and Opportunities."As always, the meeting will also offer a wide array of networking opportunities, continuing education activities, specialized student programs, and governance activities as well as the ACS National Exposition and ACS Career Fair.Meeting Highlights * The Call for Papers for the 238th ACS National Meeting & Exposition opened on January 19, 2009. Abstract deadlines vary by organizing groups, but most are in mid-March. * Submit your abstracts via OASYS, the Online Abstract Submittal System