TL;DR: 'In January, the companies invested $6 million to fund the measure, which they call the “Healthy Homes and Schools Act.” If approved by voters in November, it would declare that lead paint, which was banned for consumer uses in 1978 and causes brain damage and other physical problems in children and pregnant women, is no longer a public nuisance under California law, and the companies are not liable for ($700 million in) cleanup costs.'