Pesticide risk assessments cover all endpoints of concern. OPP updates risk assessment methods as science evolves or new information becomes available, and has worked to improve protection of children’s health. There has been an increased emphasis on toxic effects unique to children. OPP requires advanced toxicity testing to assess possible effects on the fetus and developing young, including developmental neurotoxicity and reproductive studies. OPP has required specific studies to evaluate comparative sensitivity of adult and young experimental animals, and has focused on child-specific diets, residential exposures (playing on lawns and hand-to-mouth behavior), and aggregate risks (risk.