Sorry, I did not leave my name or address at the end of my previous email. I am unable to read any of the messages about Security Policy. Where can the Policy be found on the Web? Thanks Steve Alford, M.S. Radiation Safety Officer Dana-Farber Cancer Institute 44 Binney St. Boston, MA 02115 (617) 632-3007 email: Steven_Alford@dfci.harvard.edu or: Rad_Tech@dfci.harvard.edu