Protect Children, Farmers, and Farmworkers from Nerve Agent Pesticides Act of 2017 This bill amends the Federal Food, Drug, and Cosmetic Act (FFDCA) to prohibit from sale any food that contains the organophosphate pesticide, chlorpyrifos. The Environmental Protection Agency (EPA) must offer a contract to the National Research Council to conduct an organophosphate pesticide risk assessment. If the EPA finds pesticide exposure that does not meet FFDCA standards or the Federal Insecticide, Fungicide, and Rodenticide Act standards, the EPA must take regulatory action not later than 90 days after becoming aware of the exposure.