The federal government's lead-paint program has its fair share of challenges, said the official in charge of the program during her talk at the 2014  Remodeling Leadership Conference. Since its launch four years ago, difficulties with test kits, a lack of funding, and where responsibility lies have impeded the lead-paint rule's overall progress.

Despite the obstacles, Tanya Hodge Mottley, director of the National Program Chemicals Division at the Environmental Protection Agency (EPA), said the program is an overall success. To date, more than 135,000 renovation firms and roughly 493,000 individuals have been certified to engage in lead-safe practices when working on homes where the possibility of lead paint exists.

But there's plenty of ground to gain. “There’s still a problem,” said Mottley. “Despite the progress … the blood lead levels persist.

Read what the EPA has in store for the coming months and years here.