HAZWOPER 40 - Lesson 9: Site
Control Exam Questions and Answers
(Latest Update 2026)
Lesson Description -
correct answer ✅This lesson, Site Control, explains how to set up a
site control program designed to reduce worker and public
exposure to chemical, physical, biological, and safety hazards at
hazardous waste sites. It discusses why and how to create safety
zones (i.e., Exclusion Zone, Contamination Reduction Zone, and
Support Zone) to ensure a safe environment for support staff and to
fight against cross-contamination from those entering/exiting hot
zones. Finally, it reviews the importance of having effective site
security procedures to keep unauthorized outsiders who are most
often not protected, away from exposure.
Learning Objectives
At the completion of this lesson, you will be able to: -
correct answer ✅List the three objectives that a hazard work zone
should ensure.
Describe the three most commonly used areas of a hazard work
site.
, HAZWOPER 40 - Lesson 9: Site
Control Exam Questions and Answers
(Latest Update 2026)
Summarize the distinctive characteristics and purpose of a
Contamination Reduction Zone (CRZ).
Name five functions of tasks associated with a support zone.
Explain four reasons for establishing effective internal
communication.
Introduction -
correct answer ✅Most activities in a hazard area should be
restricted to a few key workers who perform collectively in line-of-
sight communication with a command post. Zones within the site
are created to meet operation and safety objectives, and site maps
designate characteristics of the site itself and of the surrounding
community. The primary focus is that nothing unauthorized comes
in or out.
Lesson Focus
This lesson focuses on the following topics: -
correct answer ✅Site Control Program
Control Exam Questions and Answers
(Latest Update 2026)
Lesson Description -
correct answer ✅This lesson, Site Control, explains how to set up a
site control program designed to reduce worker and public
exposure to chemical, physical, biological, and safety hazards at
hazardous waste sites. It discusses why and how to create safety
zones (i.e., Exclusion Zone, Contamination Reduction Zone, and
Support Zone) to ensure a safe environment for support staff and to
fight against cross-contamination from those entering/exiting hot
zones. Finally, it reviews the importance of having effective site
security procedures to keep unauthorized outsiders who are most
often not protected, away from exposure.
Learning Objectives
At the completion of this lesson, you will be able to: -
correct answer ✅List the three objectives that a hazard work zone
should ensure.
Describe the three most commonly used areas of a hazard work
site.
, HAZWOPER 40 - Lesson 9: Site
Control Exam Questions and Answers
(Latest Update 2026)
Summarize the distinctive characteristics and purpose of a
Contamination Reduction Zone (CRZ).
Name five functions of tasks associated with a support zone.
Explain four reasons for establishing effective internal
communication.
Introduction -
correct answer ✅Most activities in a hazard area should be
restricted to a few key workers who perform collectively in line-of-
sight communication with a command post. Zones within the site
are created to meet operation and safety objectives, and site maps
designate characteristics of the site itself and of the surrounding
community. The primary focus is that nothing unauthorized comes
in or out.
Lesson Focus
This lesson focuses on the following topics: -
correct answer ✅Site Control Program
