HUD and CPSC’s two-step guidance requires a visual inspection that must show blackening of copper electrical wiring and/or air conditioning evaporator coils; and the installation of new drywall (for new construction or renovations) between 2001 and 2008.

To view the full text of this guidance, visit HUD’s website or CPSC’s website.

“Families have the right to know if their homes contain problem drywall so they can begin the process of doing needed repairs,” said Jon Gant, Director of HUD’s Office of Healthy Homes and Lead Hazard Control. “This guidance offers homeowners, contractors and state and local authorities a course of action for knowing if they’re dealing with problem drywall or not.”

“We are moving forward to help families who are suffering from problem drywall in their homes. We are committed to helping them, and we will continue to rely on solid science to identify the specific causes and remedies for problem drywall,” said CPSC Chairman Inez Tenenbaum.

Consumers largely report that their homes were built in 2006 to 2007, when an unprecedented increase in new construction occurred in part due to the hurricanes of 2004 and 2005.Common features of the reports submitted to the CPSC from homes believed to contain problem drywall have been:

• Consumers have reported a "rotten egg" smell within their homes.
• Consumers have reported health concerns such as irritated and itchy eyes and skin, difficulty in breathing, persistent cough, bloody noses, runny noses, recurrent headaches, sinus infection, and asthma attacks.
• Consumers have reported blackened and corroded metal components in their homes and the frequent replacement of components in air conditioning units.