laboratory procedures, personal protective equipment, electrical safety, fire safety, and hazardous waste disposal. Many chemicals have properties that make them hazardous: they can represent physical hazards (fire, explosion) and/or health hazards (toxicity, chemical burns, and dangerous fumes).
Washington state legislative districts. The following is a list of the forty-nine legislative districts in the U.S. state of Washington following the 2012 redistricting. From the time Washington achieved statehood in 1889, it has elected members for representation to the state legislature.
A congressional district is an electoral constituency that elects a single member of a congress. Countries with congressional districts include the United States, the Philippines, and Japan. A congressional district is based on population, which, in the United States, is taken using a census every ten years.