Perma-Fix, FL -One of the few and a leading mixed waste processors. DSSI, TN is a division of Perma-fix, and a processor of their liquid mixed wastes. Mixed wastes are wastes that contain radioactive and hazardous waste.
SRBT - Tritium Exit Sign Disposal, $50 per sign for one of theirs or $100 per sign for others manufacturers signs. Contact Mellisa Hankins @ 336-659-2610 (or) Mellisa @ SRBTechnologies.com.
Isolite - Tritium Exit Sign Disposal, $75 per sign for any manufacturer, including theirs. Contact Nicole (Springer)Seydel @ 1-800-888-5483 (or) NSpringer @ Isolite.com.
Smoke Detector Disposal - My recommendation would be to consult 10 CFR 30.20 and 10 CFR 32.26 first. Then, depending on state/local regulations, the rule of thumb for smoke detector disposal usually is if a smoke detector is less than 1 uCi Am-241, it is allowable to dispose of up to 10 in the trash per trash cycle, and if it is greater than 1 uCi Am-241, then it would be wise to send them either back to the manufacturer for disposal or if you have a lot of them, send them to a reputable company like Energy Solutions for disposal. Contact Donnie Brackett (865-220-1526) at Energy Solutions for this option.
Energy Solutions - leading radioactive waste broker & processor in the industry. Formerly called Duratek, Inc. until the 2006 merger with Envirocare of Utah and a few other companies.
2005/2006 Hazardous Materials, Substances & Wastes Compliance Guide - This is the only available compliance guide that provides all the critical interfacing DOT/EPA/OSHA Hazard Communication and Compliance requirements for Hazardous Materials, Chemicals, Substances and Wastes.
It even includes the ERG!
Coastal Network - Who I purchase my labels, wipes & protective gear through. They also have contacts for suppliers of Type A dry ice containers. Contact Mike Moyles @ 434-978-1204.
Radioactive Waste
It's all here! (Calibration, consultants, instrumentation, training, etc.) 
