1. (1) You must maintain site work zones and site control as required by Table 1, Site Work Zone Requirements.
2. (2) You must control access to the exclusion and contamination reduction zones.

3. (3) You must make sure people wear personal protective equipment (PPE) appropriate to their work zone.

   Table 1

   Site Work Zone Requirements

   For this type of work zone:	You must:
   Exclusion zone	•	Establish entry and exit checkpoints on the zone's boundary
   	•	Regulate the flow of people and equipment into and out of the zone
   	•	Make sure exits go through a contamination reduction corridor
   Contamination reduction zone with a contamination reduction corridor	•	Enter through a control point from the clean zone
   •	Provide a transition or buffer between the exclusion zone and the clean zone
   •	Perform all decontamination procedures
   	•	Establish separate decontamination routes for people and equipment, if practical
   	•	Remove all PPE worn in the contamination reduction or exclusion zones before entering the clean zone
   Clean zone or support zone	Have no employee exposure to hazardous substances or health hazards

   Note:

   See Illustration 2 for an example of site work zones.

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   Illustration 2 - Site

   Work Zones

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   Illustration 2a -

   Contamination

   Reduction Corridor

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 18-22-116, § 296-843-14005, filed 11/6/18, effective 12/7/18; WSR 04-02-053, § 296-843-14005, filed 1/5/04, effective 5/1/04.]