• For further information on radon, review these publications available online from the Environmental Protection Agency:
  
  
• Homebuyer’s and Seller’s Guide to Radon;
• Consumer’s Guide to Radon Reduction; and
• A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family From Radon.
  
  
• You may also call the following numbers for more details on radon and radon testing:
  
  
• The National Radon Hotline: (800) SOS-RADON (800-767-7236);
• The California State Department of Health Services, Indoor Air Quality Assistance Line: (510) 620-2800; and
  
• The California Radon Program: (800) 745-7236.