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670 8-hour HAZWOPER Refresher for Cleanup Operations
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The Contamination Reduction Cooridor (CRC)

Decontamination procedures take place in a designated area within the CRZ called the Contamination Reduction Corridor (CRC).

They begin at the Hotline. At least two lines of decontamination stations should be set up within the CRC. One should be used for personnel and another one for heavy equipment. A large operation may require more than two lines.

At least two decontamination lines, one for personnel and one for equipment, are formed inside the CRC.

Access Control Points

Access into and out of the CRZ from the Exclusion Zone is through Access Control Points: one each for personnel and equipment entrance, one each for personnel and equipment exit, if feasible. Access Control Points should be established at the periphery of the Exclusion Zone to regulate the flow of personnel and equipment into and out of the zone and to help verify proper procedures for entering and exiting are followed.

The Contamination Control Line

The boundary between the Support Zone and the CRZ, called the Contamination Control Line, separates the possibly low contamination area from the clean Support Zone.

  • Access to the CRZ from the Support Zone is through two Access Control Points if feasible: one each for personnel and equipment.
  • Personnel entering the CRZ should be required to wear the personal protective clothing and equipment prescribed for working in the CRZ.
  • To re-enter the Support Zone, workers should remove any protective clothing and equipment worn in the CRZ, and leave through the personnel exit Access Control Point.

Knowledge Check Choose the best answer for the question.

6-8. The boundary between the Support Zone and the CRZ, called the _____, separates the possibly low contamination area from the clean Support Zone.