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 Washington Administrative Code (Last Updated: November 23, 2016)
 Title 51. Enterprise Services, Department of (Building Code Council)
 Chapter 51-11C. State Building Code adoption and amendment of the 2015 edition of the International Energy Conservation Code, Commercial.

  Section 51-11C-405021. Section C405.2.1—Occupant sensor controls.  

Latest version.
  • C405.2.1 Occupant sensor controls. Occupant sensor controls shall be installed to control lights in the following space types:
    1. Classrooms/lecture/training rooms.
    2. Conference/meeting/multipurpose rooms.
    3. Copy/print rooms.
    4. Lounges.
    5. Employee lunch and break rooms.
    6. Private offices.
    7. Restrooms.
    8. Storage rooms.
    9. Janitorial closets.
    10. Locker rooms.
    11. Other spaces 300 square feet (28 m2) or less that are enclosed by floor-to-ceiling height partitions.
    12. Warehouses.
    C405.2.1.1 Occupant sensor control function. Occupant sensor controls shall comply with the following:
    1. Automatically turn off lights within 30 minutes of all occupants leaving the space.
    2. Be manual on or controlled to automatically turn the lighting on to not more than 50 percent power.
    EXCEPTION:
    Full automatic-on controls shall be permitted to control lighting in public corridors, stairways, restrooms, primary building entrances areas and lobbies, and areas where manual-on operation would endanger the safety or security of the room or building occupants.
    3. Shall incorporate a manual control to allow occupants to turn lights off.
    C405.2.1.2 Occupant sensor control function in warehouses. In warehouses, the lighting in aisleways and open areas shall be controlled with occupant sensors that automatically reduce lighting power by not less than 50 percent when the areas are unoccupied. The occupancy sensor shall control lighting in each aisleway independently, and shall not control lighting beyond the aisleway being controlled by the sensor.
    [Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-405021, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-405021, filed 2/1/13, effective 7/1/13.]
RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-405021, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-405021, filed 2/1/13, effective 7/1/13.