Contractors and subcontractors who want to participate in the program go through an intense review and must demonstrate adequate on-site safety programs and employee training. Then they get ranked on one of three levels of the CHASE standards--blue is for excellence, white is for mid-ranking, and red is for low ranking.

Miller & Solomon, which specializes in sizable commercial projects, received a white ranking. The company's workers finished training in fall protection, hazard communication and trenching evacuation. ''The philosophy at Miller & Solomon is that we can build a better product if the job site is safe for everyone,'' Leon Williams, the company's safety director, said in a statement.

The site that qualifies is Nova Southeastern University's H. Wayne Huizenga School of Business and Entrepreneurship in Fort Lauderdale, FL, which had 232 days in a row without an injury.