ANSI/IICRC S900 Professional Remediation of
Precursors, Drug Residues & Associated Chemical
Waste – IICRC S900 Study Guide, Original Practice
Questions & Answers, Exam Preparation,
Comprehensive Remediation Review, Site
Characterization, Contamination Levels, Safety &
Health, Risk Assessment, Cleaning, Equipment,
Structural Remediation, Contents, Waste Disposal &
Post-Remediation
Question 1: According to the ANSI/IICRC S900 Standard, what is a
foundational assumption that must be met before a remediation project for
precursors and drug residues can begin?
A. The property owner has secured all necessary financing for the project.
B. The site has been released by law enforcement or regulatory agencies.
C. All visible debris and waste have been removed from the property.
D. The local community has been notified of the upcoming remediation work.
CORRECT ANSWER: B. The site has been released by law enforcement or
regulatory agencies.
Rationale: The S900 Standard explicitly states that it "will assume that all scenes have
been released by law enforcement or regulatory agencies" before remediation work
begins . This is a critical safety and legal prerequisite.
Question 2: The ANSI/IICRC S900 Standard is designed for the remediation
and cleaning of sites contaminated by residues of which of the following?
A. Only methamphetamine and its precursors.
B. Illicit drugs, cannabis, and tobacco.
C. Biological agents and infectious waste only.
D. Industrial solvents and heavy metals.
CORRECT ANSWER: B. Illicit drugs, cannabis, and tobacco.
Rationale: The standard's scope specifically covers "the remediation and cleaning of a
site that is contaminated by the residues of illicit drugs, cannabis, and tobacco" .
Question 3: Which of the following primary subject matter areas is included in
the ANSI/IICRC S900 Standard to ensure a comprehensive approach to
remediation?
A. Financial auditing and cost estimation only.
B. Marketing and client acquisition strategies.
C. Safety and health protocols for the remediation site.
D. Long-term property value assessment.
CORRECT ANSWER: C. Safety and health protocols for the remediation site.
,Rationale: The S900 Standard requires a working knowledge of several subject areas,
including "Safety and health" for site cleanup .
Question 4: The purpose of the ANSI/IICRC S900 Standard is to define the
criteria and methodology used by a practitioner for what primary objective?
A. To maximize the financial return on the remediation project.
B. To expedite the cleanup process to minimize business interruption.
C. To inspect and investigate chemical contamination and establish work plans to make
the site suitable for occupancy.
D. To identify the individuals responsible for the contamination.
CORRECT ANSWER: C. To inspect and investigate chemical contamination and
establish work plans to make the site suitable for occupancy.
Rationale: The standard's purpose is to define criteria and methodology for "inspecting
and investigating chemical contamination of a site, and for establishing work plans and
procedures in remediating the site to be suitable for occupancy" .
Question 5: The ANSI/IICRC S900 Standard is written primarily for use by
which of the following groups?
A. Law enforcement agencies and regulatory bodies.
B. Property owners and tenants.
C. Remediation companies, their employees, and other Materially Interested Parties
(MIPs).
D. Healthcare professionals and pharmacists.
CORRECT ANSWER: C. Remediation companies, their employees, and other
Materially Interested Parties (MIPs).
Rationale: The standard is "written for use by those involved in the cleanup...primarily
for remediation companies, their employees, other workers, and other Materially
Interested Parties (MIPs)" such as consultants and adjusters .
Question 6: Which of the following is a key element of the administrative and
risk management phase of an S900 remediation project?
A. Determining the color scheme for the repainted interior.
B. Securing a landfill permit for general construction debris.
C. Establishing project documentation and risk assessment procedures.
D. Negotiating a lower price for PPE with a new supplier.
CORRECT ANSWER: C. Establishing project documentation and risk
assessment procedures.
Rationale: The standard explicitly lists "Administrative procedures, project
documentation, and risk management/risk assessment" as a key component .
,Question 7: According to the principles of managing precursor chemicals
outlined in the S900 framework, what is a key regulatory requirement for
businesses that handle these substances?
A. They must store all chemicals in a residential garage.
B. They must be registered with the Drug Enforcement Administration (DEA).
C. They must provide a public tour of their facility annually.
D. They are not required to keep records of transactions.
CORRECT ANSWER: B. They must be registered with the Drug Enforcement
Administration (DEA).
Rationale: In the context of S900 principles, regulatory oversight includes the DEA, and
companies that handle certain listed precursor chemicals must be registered with the
DEA .
Question 8: What is the primary goal when managing drug residues, as defined
within the principles of the S900 Standard?
A. To reuse all containers to reduce waste.
B. To flush residues down the drain for easy disposal.
C. To prevent environmental contamination and diversion.
D. To mix them with other waste to dilute their potency.
CORRECT ANSWER: C. To prevent environmental contamination and
diversion.
Rationale: The management of drug residues is aimed at "preventing environmental
contamination and diversion" .
Question 9: In the context of the S900 Standard, which of the following
activities is prohibited for the disposal of hazardous pharmaceutical waste?
A. Incineration at a licensed facility.
B. Flushing waste pharmaceuticals down drains or toilets.
C. Using a reverse distributor for non-hazardous waste.
D. Using a hazardous waste manifest for tracking.
CORRECT ANSWER: B. Flushing waste pharmaceuticals down drains or toilets.
Rationale: The S900-related principles explicitly state that healthcare facilities are
"prohibited from flushing hazardous pharmaceutical waste, including residues, down
drains or toilets" . This is a key point of "no sewering."
Question 10: The S900 Standard is part of the body of work developed by
which organization?
A. The Environmental Protection Agency (EPA)
B. The Drug Enforcement Administration (DEA)
C. The Institute of Inspection, Cleaning and Restoration Certification (IICRC)
D. The Occupational Safety and Health Administration (OSHA)
, CORRECT ANSWER: C. The Institute of Inspection, Cleaning and Restoration
Certification (IICRC)
Rationale: The ANSI/IICRC S900 Standard for Professional Remediation of Precursors,
Drug Residues, and Associated Chemical Waste is published by the IICRC .
Question 11: What is the status of the ANSI/IICRC S900 Standard as of its
publication in 2025?
A. It is a draft standard still under public review.
B. It is the First Edition of the standard.
C. It is a minor revision to an existing standard.
D. It has been withdrawn from publication.
CORRECT ANSWER: B. It is the First Edition of the standard.
Rationale: Official publications and press releases refer to the standard as the
"ANSI/IICRC S900 (2025) First Edition," indicating this is its initial version .
Question 12: The IICRC S900 Standard includes provisions for remediation of
which of the following types of property?
A. Only commercial office buildings.
B. Only residential single-family homes.
C. Structural elements, as well as contents and vehicles.
D. Only outdoor spaces like parks and playgrounds.
CORRECT ANSWER: C. Structural elements, as well as contents and vehicles.
Rationale: The standard outlines procedures for multiple aspects of a property, including
"Structural remediation," "Vehicles and other machinery remediation," and "Contents
remediation" .
Question 13: Following the principles of managing associated chemical waste,
what is a crucial first step before disposal?
A. Determining the waste's ignitability, corrosivity, reactivity, or toxicity.
B. Neutralizing all waste with a basic solution.
C. Compacting the waste to reduce its volume.
D. Painting the waste containers for easy identification.
CORRECT ANSWER: A. Determining the waste's ignitability, corrosivity,
reactivity, or toxicity.
Rationale: Proper waste characterization is required to determine if the waste meets the
EPA's definition of hazardous waste (e.g., being ignitable, corrosive, reactive, or toxic) .
Question 14: In the S900 Standard, which of the following is considered a
Materially Interested Party (MIP)?
A. A neighbor of the remediation site.
B. A local real estate agent.
Precursors, Drug Residues & Associated Chemical
Waste – IICRC S900 Study Guide, Original Practice
Questions & Answers, Exam Preparation,
Comprehensive Remediation Review, Site
Characterization, Contamination Levels, Safety &
Health, Risk Assessment, Cleaning, Equipment,
Structural Remediation, Contents, Waste Disposal &
Post-Remediation
Question 1: According to the ANSI/IICRC S900 Standard, what is a
foundational assumption that must be met before a remediation project for
precursors and drug residues can begin?
A. The property owner has secured all necessary financing for the project.
B. The site has been released by law enforcement or regulatory agencies.
C. All visible debris and waste have been removed from the property.
D. The local community has been notified of the upcoming remediation work.
CORRECT ANSWER: B. The site has been released by law enforcement or
regulatory agencies.
Rationale: The S900 Standard explicitly states that it "will assume that all scenes have
been released by law enforcement or regulatory agencies" before remediation work
begins . This is a critical safety and legal prerequisite.
Question 2: The ANSI/IICRC S900 Standard is designed for the remediation
and cleaning of sites contaminated by residues of which of the following?
A. Only methamphetamine and its precursors.
B. Illicit drugs, cannabis, and tobacco.
C. Biological agents and infectious waste only.
D. Industrial solvents and heavy metals.
CORRECT ANSWER: B. Illicit drugs, cannabis, and tobacco.
Rationale: The standard's scope specifically covers "the remediation and cleaning of a
site that is contaminated by the residues of illicit drugs, cannabis, and tobacco" .
Question 3: Which of the following primary subject matter areas is included in
the ANSI/IICRC S900 Standard to ensure a comprehensive approach to
remediation?
A. Financial auditing and cost estimation only.
B. Marketing and client acquisition strategies.
C. Safety and health protocols for the remediation site.
D. Long-term property value assessment.
CORRECT ANSWER: C. Safety and health protocols for the remediation site.
,Rationale: The S900 Standard requires a working knowledge of several subject areas,
including "Safety and health" for site cleanup .
Question 4: The purpose of the ANSI/IICRC S900 Standard is to define the
criteria and methodology used by a practitioner for what primary objective?
A. To maximize the financial return on the remediation project.
B. To expedite the cleanup process to minimize business interruption.
C. To inspect and investigate chemical contamination and establish work plans to make
the site suitable for occupancy.
D. To identify the individuals responsible for the contamination.
CORRECT ANSWER: C. To inspect and investigate chemical contamination and
establish work plans to make the site suitable for occupancy.
Rationale: The standard's purpose is to define criteria and methodology for "inspecting
and investigating chemical contamination of a site, and for establishing work plans and
procedures in remediating the site to be suitable for occupancy" .
Question 5: The ANSI/IICRC S900 Standard is written primarily for use by
which of the following groups?
A. Law enforcement agencies and regulatory bodies.
B. Property owners and tenants.
C. Remediation companies, their employees, and other Materially Interested Parties
(MIPs).
D. Healthcare professionals and pharmacists.
CORRECT ANSWER: C. Remediation companies, their employees, and other
Materially Interested Parties (MIPs).
Rationale: The standard is "written for use by those involved in the cleanup...primarily
for remediation companies, their employees, other workers, and other Materially
Interested Parties (MIPs)" such as consultants and adjusters .
Question 6: Which of the following is a key element of the administrative and
risk management phase of an S900 remediation project?
A. Determining the color scheme for the repainted interior.
B. Securing a landfill permit for general construction debris.
C. Establishing project documentation and risk assessment procedures.
D. Negotiating a lower price for PPE with a new supplier.
CORRECT ANSWER: C. Establishing project documentation and risk
assessment procedures.
Rationale: The standard explicitly lists "Administrative procedures, project
documentation, and risk management/risk assessment" as a key component .
,Question 7: According to the principles of managing precursor chemicals
outlined in the S900 framework, what is a key regulatory requirement for
businesses that handle these substances?
A. They must store all chemicals in a residential garage.
B. They must be registered with the Drug Enforcement Administration (DEA).
C. They must provide a public tour of their facility annually.
D. They are not required to keep records of transactions.
CORRECT ANSWER: B. They must be registered with the Drug Enforcement
Administration (DEA).
Rationale: In the context of S900 principles, regulatory oversight includes the DEA, and
companies that handle certain listed precursor chemicals must be registered with the
DEA .
Question 8: What is the primary goal when managing drug residues, as defined
within the principles of the S900 Standard?
A. To reuse all containers to reduce waste.
B. To flush residues down the drain for easy disposal.
C. To prevent environmental contamination and diversion.
D. To mix them with other waste to dilute their potency.
CORRECT ANSWER: C. To prevent environmental contamination and
diversion.
Rationale: The management of drug residues is aimed at "preventing environmental
contamination and diversion" .
Question 9: In the context of the S900 Standard, which of the following
activities is prohibited for the disposal of hazardous pharmaceutical waste?
A. Incineration at a licensed facility.
B. Flushing waste pharmaceuticals down drains or toilets.
C. Using a reverse distributor for non-hazardous waste.
D. Using a hazardous waste manifest for tracking.
CORRECT ANSWER: B. Flushing waste pharmaceuticals down drains or toilets.
Rationale: The S900-related principles explicitly state that healthcare facilities are
"prohibited from flushing hazardous pharmaceutical waste, including residues, down
drains or toilets" . This is a key point of "no sewering."
Question 10: The S900 Standard is part of the body of work developed by
which organization?
A. The Environmental Protection Agency (EPA)
B. The Drug Enforcement Administration (DEA)
C. The Institute of Inspection, Cleaning and Restoration Certification (IICRC)
D. The Occupational Safety and Health Administration (OSHA)
, CORRECT ANSWER: C. The Institute of Inspection, Cleaning and Restoration
Certification (IICRC)
Rationale: The ANSI/IICRC S900 Standard for Professional Remediation of Precursors,
Drug Residues, and Associated Chemical Waste is published by the IICRC .
Question 11: What is the status of the ANSI/IICRC S900 Standard as of its
publication in 2025?
A. It is a draft standard still under public review.
B. It is the First Edition of the standard.
C. It is a minor revision to an existing standard.
D. It has been withdrawn from publication.
CORRECT ANSWER: B. It is the First Edition of the standard.
Rationale: Official publications and press releases refer to the standard as the
"ANSI/IICRC S900 (2025) First Edition," indicating this is its initial version .
Question 12: The IICRC S900 Standard includes provisions for remediation of
which of the following types of property?
A. Only commercial office buildings.
B. Only residential single-family homes.
C. Structural elements, as well as contents and vehicles.
D. Only outdoor spaces like parks and playgrounds.
CORRECT ANSWER: C. Structural elements, as well as contents and vehicles.
Rationale: The standard outlines procedures for multiple aspects of a property, including
"Structural remediation," "Vehicles and other machinery remediation," and "Contents
remediation" .
Question 13: Following the principles of managing associated chemical waste,
what is a crucial first step before disposal?
A. Determining the waste's ignitability, corrosivity, reactivity, or toxicity.
B. Neutralizing all waste with a basic solution.
C. Compacting the waste to reduce its volume.
D. Painting the waste containers for easy identification.
CORRECT ANSWER: A. Determining the waste's ignitability, corrosivity,
reactivity, or toxicity.
Rationale: Proper waste characterization is required to determine if the waste meets the
EPA's definition of hazardous waste (e.g., being ignitable, corrosive, reactive, or toxic) .
Question 14: In the S900 Standard, which of the following is considered a
Materially Interested Party (MIP)?
A. A neighbor of the remediation site.
B. A local real estate agent.
