We’re coming up on an anniversary: in 1970 Congress passed and President Richard Nixon signed into the law the Occupational Safety and Health Act, creating the Occupational Safety and Health Administration, OSHA.

NIOSH will celebrate a notable 20th anniversary this month. On October 19, 1996, a new facility was dedicated on NIOSH’s Morgantown, West Virginia, campus. The facility, often referred to now as the “L” Building, provided NIOSH for the first time with a strategic convergence of specialized equipment and dedicated laboratory space for advanced health-effects research.

The traditional occupational safety and health programs of the twentieth century were designed, by and large, to prevent work-related injury, illness, and death in workplaces where hazards usually were recognizable and predictable. In the twenty-first century, scientists and decision-makers have had to develop additional skills and strategies to address another type of hazard: the risks that emergency responders face in the line of duty from unpredictable, uncontrolled conditions encountered in large-scale disasters.