Excerpts from nj.com:

President Donald Trump on Monday signed legislation to set up a national registry for firefighters to help track links between exposure to fumes and cancer. The Firefighter Cancer Registry Act requires the Centers for Disease Control and Prevention to set up a database in order to study possible links between cancer and the fumes and toxins firefighters are exposed to. The idea is use the information to develop better equipment and other techniques to protect firefighters from cancer-causing chemicals.

The lawmakers cited a 2015 study by the National Institute for Occupational Safety and Health that found that a greater incidence of certain cancers among firefighters compared with the general population.