8. IMPLEMENTATIONBased on the encouraging results of our experiments described in the previous section, this section focuses on how CDPH is using our predictive models to prevent lead poisoning. Currently, Chicago requires doctors to determine the BLLs of all young children, regardless of housing age or the absence of other risk factors for lead exposure. This requirement is often ignored. Medicaid also requires two blood tests by age two. In the near future, these requirements will be loosened or will be ignored even more frequently as the risk of elevated lead exposure continues its rapid decline.This will increase the need for and usefulness of a tool that allows stakeholders to better assess risk and take preventative actions as warranted.