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Hazardous Waste Operations
(HAZWOPER 40) Final Exam | OSHA |
2026/2027 Verified Q&A
Hazardous Waste Operations & Emergency Response (HAZWOPER) 40-Hour Final
Examination
OSHA-Compliant Certification Exam
Core Domains:
Hazard Recognition & Risk Assessment, Toxicology & Exposure Monitoring, Personal Protective
Equipment (PPE) Selection & Use, Site Control & Safety Plans, Decontamination Procedures,
Emergency Response Protocols, Regulatory Standards (OSHA 29 CFR 1910.120), Hazard
Communication (HazCom/GHS), and Medical Surveillance | OSHA-Compliant Hazardous
Materials Certification Focus | Health & Safety Certification Exam Format
Exam Structure
The HAZWOPER 40-Hour Final Exam for the 2026/2027 certification cycle is a 250-question,
multiple-choice examination designed to assess knowledge of OSHA-mandated safety practices for
hazardous waste operations and emergency response activities.
Introduction
This HAZWOPER 40 Final Exam guide (2026/2027 Update) reflects current OSHA regulations
and industry best practices governing hazardous waste operations and emergency response. The
content emphasizes worker safety, regulatory compliance, and effective response strategies for
environments involving hazardous substances. The exam ensures preparedness for site operations,
hazardous waste cleanup, treatment, storage, and emergency incident response in accordance with
federal safety standards.
Answer Format
All correct answers and required safety protocols are presented in highlight for clarity, followed by
detailed rationales referencing:
• Applicable OSHA 29 CFR 1910.120 standards
• NIOSH guidelines
• PPE hierarchy of controls
• Site-specific safety and emergency planning requirements
This format is designed to support both exam success and real-world regulatory understanding.
,True or False: HAZWOPER regulations apply to emergency response operations only for
releases and not for threats of releases.
False: HAZWOPER regulations apply for both emergency response operations for releases and
for threats of releases.
What does HAZWOPER stand for?
Hazardous Waste Operations and Emergency Response
The primary components of the OSHA regulation applicable to the proper management of
hazardous materials are:
29 CFR Part 1910
What is RCRA?
Resource Conservation and Recovery Act
The Hazard Communication Standard applies to what type of hazard?
Both Physical and Natural Hazards
Material safety data sheets (MSDS) are now known as...
Safety Data Sheets (SDS)
When must hazard communication training be done?
at initial assignment, when a new chemical is used, and when there is a change in the process
What is GHS?
Globally Harmonized System of Classification and Labeling of Chemicals
What conveys health, physical, and environmental hazard information, assigned to a hazard class
and category?
Pictograms
What must be labeled?
Containers
If a chemical has a GHS rating of 4, it is...
least hazardous
If a chemical has a GHS rating of 1, it is...
most hazardous
How many sections are there on a SDS?
16
,A(n) ____ must be on hand for each hazardous chemical used.
SDS
How many mandatory sections are there on a SDS?
12
SDSs must be ______ accessible to employees during their work shift.
readily
The ______ should specifically identify the names and organizational relationships among key
personnel.
HASP
Who has responsibility for overall management of the project?
Project Manager
The Site Safety and Health Officer is responsible for...
managing the health and safety program for the site.
Who is responsible for maintaining line-of-sight contact at a HAZWOPER site?
Command Post Supervisor
The Security Officer is responsible for...
controlling facility access and egress
The _____ is responsible for planning and mobilization of the facilities
Logistics Officer
_________ consisting of field team members (e.g., to include rescue teams for retrieving
personnel from dangerous situations, and sampling teams for obtaining samples of potentially
hazardous materials) who complete the on site tasks required to fulfill the work plan, should be
identified.
Speciality Teams
The specific responsibilities of the _____ should be stated (e.g., providing advice on methods of
handling explosive materials and assisting in safely detonating or disposing of explosive
materials).
Bomb Squad Expert
The purpose of a site control program is to...
minimize potential contamination, protect the public, and protect the environment
, An effective site control program contains key procedures that reduce worker and public
exposure to...
chemical and physical hazards, safety hazards, and biological hazards
The level of site control needed depends on...
site characteristics, site size, and surrounding community
The _____ serves as a central source of information about the site and can help personnel plan
and organize activities.
site map
The Safety Officer is normally found in the...
Contamination Reduction Zone or Support Zone
The Support Zone typically has the following
chemical resistant suits, support staff, and supplies
What is a Hotline?
A place that divides the contaminated area from all other zones.
The boundary between the Support Zone and the CRZ is called the...
Contamination Control Line
Which of the following is NOT true about the site security?
A. Site security is necessary to prevent the exposure of unauthorized, unprotected people to site
hazards.
B. Site security is necessary to avoid the increased hazards from vandals or persons seeking to
abandon other wastes on the site.
C. Site security is necessary to intimidate the competition.
D. Site security is necessary to avoid interference with safe working procedures.
C. Site security is necessary to intimidate the competition.
An external communication system between on site and off site personnel is...
necessary
Verbal communication at a site can be _____ by on site background noise and the use of
personal protective equipment.
impeded
Two sets of communication systems should be established:
internal and external
Hazardous Waste Operations
(HAZWOPER 40) Final Exam | OSHA |
2026/2027 Verified Q&A
Hazardous Waste Operations & Emergency Response (HAZWOPER) 40-Hour Final
Examination
OSHA-Compliant Certification Exam
Core Domains:
Hazard Recognition & Risk Assessment, Toxicology & Exposure Monitoring, Personal Protective
Equipment (PPE) Selection & Use, Site Control & Safety Plans, Decontamination Procedures,
Emergency Response Protocols, Regulatory Standards (OSHA 29 CFR 1910.120), Hazard
Communication (HazCom/GHS), and Medical Surveillance | OSHA-Compliant Hazardous
Materials Certification Focus | Health & Safety Certification Exam Format
Exam Structure
The HAZWOPER 40-Hour Final Exam for the 2026/2027 certification cycle is a 250-question,
multiple-choice examination designed to assess knowledge of OSHA-mandated safety practices for
hazardous waste operations and emergency response activities.
Introduction
This HAZWOPER 40 Final Exam guide (2026/2027 Update) reflects current OSHA regulations
and industry best practices governing hazardous waste operations and emergency response. The
content emphasizes worker safety, regulatory compliance, and effective response strategies for
environments involving hazardous substances. The exam ensures preparedness for site operations,
hazardous waste cleanup, treatment, storage, and emergency incident response in accordance with
federal safety standards.
Answer Format
All correct answers and required safety protocols are presented in highlight for clarity, followed by
detailed rationales referencing:
• Applicable OSHA 29 CFR 1910.120 standards
• NIOSH guidelines
• PPE hierarchy of controls
• Site-specific safety and emergency planning requirements
This format is designed to support both exam success and real-world regulatory understanding.
,True or False: HAZWOPER regulations apply to emergency response operations only for
releases and not for threats of releases.
False: HAZWOPER regulations apply for both emergency response operations for releases and
for threats of releases.
What does HAZWOPER stand for?
Hazardous Waste Operations and Emergency Response
The primary components of the OSHA regulation applicable to the proper management of
hazardous materials are:
29 CFR Part 1910
What is RCRA?
Resource Conservation and Recovery Act
The Hazard Communication Standard applies to what type of hazard?
Both Physical and Natural Hazards
Material safety data sheets (MSDS) are now known as...
Safety Data Sheets (SDS)
When must hazard communication training be done?
at initial assignment, when a new chemical is used, and when there is a change in the process
What is GHS?
Globally Harmonized System of Classification and Labeling of Chemicals
What conveys health, physical, and environmental hazard information, assigned to a hazard class
and category?
Pictograms
What must be labeled?
Containers
If a chemical has a GHS rating of 4, it is...
least hazardous
If a chemical has a GHS rating of 1, it is...
most hazardous
How many sections are there on a SDS?
16
,A(n) ____ must be on hand for each hazardous chemical used.
SDS
How many mandatory sections are there on a SDS?
12
SDSs must be ______ accessible to employees during their work shift.
readily
The ______ should specifically identify the names and organizational relationships among key
personnel.
HASP
Who has responsibility for overall management of the project?
Project Manager
The Site Safety and Health Officer is responsible for...
managing the health and safety program for the site.
Who is responsible for maintaining line-of-sight contact at a HAZWOPER site?
Command Post Supervisor
The Security Officer is responsible for...
controlling facility access and egress
The _____ is responsible for planning and mobilization of the facilities
Logistics Officer
_________ consisting of field team members (e.g., to include rescue teams for retrieving
personnel from dangerous situations, and sampling teams for obtaining samples of potentially
hazardous materials) who complete the on site tasks required to fulfill the work plan, should be
identified.
Speciality Teams
The specific responsibilities of the _____ should be stated (e.g., providing advice on methods of
handling explosive materials and assisting in safely detonating or disposing of explosive
materials).
Bomb Squad Expert
The purpose of a site control program is to...
minimize potential contamination, protect the public, and protect the environment
, An effective site control program contains key procedures that reduce worker and public
exposure to...
chemical and physical hazards, safety hazards, and biological hazards
The level of site control needed depends on...
site characteristics, site size, and surrounding community
The _____ serves as a central source of information about the site and can help personnel plan
and organize activities.
site map
The Safety Officer is normally found in the...
Contamination Reduction Zone or Support Zone
The Support Zone typically has the following
chemical resistant suits, support staff, and supplies
What is a Hotline?
A place that divides the contaminated area from all other zones.
The boundary between the Support Zone and the CRZ is called the...
Contamination Control Line
Which of the following is NOT true about the site security?
A. Site security is necessary to prevent the exposure of unauthorized, unprotected people to site
hazards.
B. Site security is necessary to avoid the increased hazards from vandals or persons seeking to
abandon other wastes on the site.
C. Site security is necessary to intimidate the competition.
D. Site security is necessary to avoid interference with safe working procedures.
C. Site security is necessary to intimidate the competition.
An external communication system between on site and off site personnel is...
necessary
Verbal communication at a site can be _____ by on site background noise and the use of
personal protective equipment.
impeded
Two sets of communication systems should be established:
internal and external
