There are no state or federal regulations on homes. Public buildings are regulated under the National Emission Standards for Hazardous Air Pollutants. For both schools and buildings, look in the Yellow Pages for a list of firms specializing in this work. The kind of freon that harms the atmosphere will not be manufactured after December 1995.It will still be available to certified technicians for servicing existing equipment. Freon is required to be recycled.
New equipment uses alternative refrigerants.
Shops that service refrigeration equipment must have a certified recovery unit and certified technicians. For more information on this topic from EPA's National WEB server click here. I'm worried about lead in water. A. Lead leaches into water sitting in lead pipes or pipes with soldering in the distribution system, usually within a building or house. Before consuming water, run the tap for 30 seconds.