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.
List of United States congressional districts. There are 435 state congressional districts in the United States House of Representatives, with each one representing approximately 711,000 people. The total number of state members has been capped by the Reapportionment Act of 1929.