According to the National Oceanic and Atmospheric Administration, heat is the number one weather-related killer in the United States resulting in hundreds of fatalities each year.

Currently, workplaces in the United States function under the Hazard Communication Standard 1910.1200 as published in the Code of Federal Regulations on March 11, 1994 - also referred to as HCS 1994.

The first step in the process of developing a RPP is to conduct an industrial hygiene audit of the workplace to assess the presence of any atmospheric contaminants. Respiratory hazards can take the form of harmful dust, fogs, fumes, mists, gases, smoke, sprays or vapors.

Traveling to Washington in the spring is an annual tradition for millions of American families and businesspeople.