Blueprint is a joint research project of the Mount Sinai Construction Hygiene and Ergonomics Program (CHEP), and Hunter College, Urban Public Health Program. The project is aimed at designing and evaluating practical guides for protecting workers from lead and silica at construction sites. Blueprint Guides contain best practices for managing the use of engineering controls, safe work practices, respirators, and safety and tool box meetings. The Guides should be useful for construction managers, engineers, and union representatives who are involved with work site health and safety. Blueprint is supported by a grant from the National Institute of Occupational Safety and Health (NIOSH) through the Center to Protect Workers Rights (CPWR).