By writing or faxing a written request to the following location you can obtain a free radiation safety training video that is up to date and very informative. The video itself is about 12 minutes long. Howard Hughes Medical Inst. 4000 Jones Bridge Rd. Chevy Chase, MD 20815 FAX 301-215-8828 Phone 8827 Have a great day!!! DAVE LANE, RAD. SAFETY CEHS. office (618)-536-2015 fax (618)-453-7192