26- 239 C.M.R. ch. 102, § 1
It shall be deemed an unfair or deceptive trade practice for any person who sells or installs urea formaldehyde foam insulation to fail to disclose conspicuously and in writing to a prospective purchaser prior to contracting to sell or to install urea formaldehyde foam insulation in a building used or as attached to a residence the following notice:
HEALTH AND SAFETY WARNING
Urea formaldehyde foam insulation may release formaldehyde gas into your home over a long period of time.
Consumer who are exposed to formaldehyde gas may suffer eye, nose and throat irritation, coughing, shortness of breath, skin irritation, nausea, headaches and dizziness. People with respiratory problems or allergies may suffer more serious reactions, especially persons allergic to formaldehyde.
The symptoms may appear immediately, or not until months after installation.
Government scientists have also concluded that extended exposure to formaldehyde should be presumed to increase the risk of cancer in humans.
Urea formaldehyde foam insulation is not recommended for use in attics, ceilings, and interior walls because installations in these areas increases the likelihood that formaldehyde gas will be released into your home. In some instances the formaldehyde gas cannot be controlled by ventilation or other inexpensive means.
26- 239 C.M.R. ch. 102, § 1