; (2) have not had a major renovation since its construction; (3) have received 1 or more findings in the safe and clean environments key performance area (KPA); (4) have hazardous conditions, materials, or equipment that may cause harm to children, families, or staff; (5) have an environment that is not free of air pollutants, including mold, smoke, lead, pesticides, and herbicides, as well as soil and water pollutants; and (6) lack preparedness for fire and other emergencies. (d) Use of funds Eligible use of grant funds to improve and update Head Start infrastructure include— (1) updates, renovations, and repairs to address structural issues; (2) building or acquiring additional classroom space, common areas, play areas; (3) updating heating, cooling, and ventilation systems; (4) building and expanding playgrounds and outdoor spaces; (5) removing, renovating, and acquiring furnishings; (6) installing and updating bathroom facilities, including the installation of child-size sinks and toilets; (7) reducing or removing toxic industrial compounds; (8) updates to safety and emergency preparedness, such as upgrading sprinkler systems and installing emergency lighting; (9) weatherization; (10) improvements to water, sewer, and plumbing systems