Texas Asbestos Abatement Supervisor Exam
Prep 2026/2027 – Actual Questions with
Verified Answers, Detailed Rationales &
Expert-Reviewed Study Guide PDF (Latest
Updated Edition)
• This study guide contains 200 actual-style exam questions with verified answers,
detailed EXPERT RATIONALE, and expert-reviewed content to prepare you fully for
the Texas Asbestos Abatement Supervisor certification exam.
• Use this material by reading each question carefully, selecting your answer before
checking the highlighted correct option and EXPERT RATIONALE below it —
consistent daily practice across all sections will maximize your exam readiness.
TEXAS ASBESTOS ABATEMENT SUPERVISOR EXAM PREP 2026/2027
QUESTION 1 What is the primary federal law governing asbestos abatement in
the United States?
A. Clean Air Act (CAA)
B. Resource Conservation and Recovery Act (RCRA)
C. Toxic Substances Control Act (TSCA)
D. Occupational Safety and Health Act (OSHAct)
E. National Emission Standards for Hazardous Air Pollutants (NESHAP)
Correct Answer: E. National Emission Standards for Hazardous Air
Pollutants (NESHAP)
EXPERT RATIONALE: NESHAP, found under 40 CFR Part 61 Subpart M, is the
primary federal regulation governing asbestos abatement work, demolition, and
renovation activities involving asbestos-containing materials (ACM). It sets emission
standards and procedural requirements for asbestos removal.
,QUESTION 2 In Texas, which state agency primarily oversees asbestos
abatement licensing and regulation?
A. Texas Commission on Environmental Quality (TCEQ)
B. Texas Department of State Health Services (DSHS)
C. Texas Department of Labor and Standards
D. Texas Occupational Safety Board
E. Texas Department of Licensing and Regulation (TDLR)
Correct Answer: E. Texas Department of Licensing and Regulation (TDLR)
EXPERT RATIONALE: TDLR is the primary agency in Texas responsible for
licensing asbestos abatement professionals, including supervisors, workers,
inspectors, and project designers, under the Texas Asbestos Health Protection
Rules (TAHPR).
QUESTION 3 What is the OSHA permissible exposure limit (PEL) for asbestos as
an 8-hour time-weighted average (TWA)?
A. 2.0 fibers per cubic centimeter (f/cc)
B. 0.5 f/cc
C. 0.1 f/cc
D. 1.0 f/cc
E. 0.05 f/cc
Correct Answer: C. 0.1 f/cc
EXPERT RATIONALE: OSHA's PEL for asbestos is 0.1 fiber per cubic centimeter
of air (f/cc) as an 8-hour TWA, as established under 29 CFR 1926.1101 for
construction and 29 CFR 1910.1001 for general industry.
,QUESTION 4 What is the OSHA excursion limit (EL) for asbestos exposure over
a 30-minute short-term period?
A. 0.5 f/cc
B. 1.0 f/cc
C. 2.0 f/cc
D. 0.1 f/cc
E. 5.0 f/cc
Correct Answer: B. 1.0 f/cc
EXPERT RATIONALE: OSHA sets an excursion limit of 1.0 f/cc for any 30-minute
short-term exposure. If this limit is exceeded, immediate corrective action must be
taken regardless of the 8-hour TWA.
QUESTION 5 Which type of respirator is the minimum required for Class I
asbestos work?
A. Half-face air-purifying respirator with HEPA filters
B. Single-use dust mask (N95)
C. Powered air-purifying respirator (PAPR)
D. Full-face piece air-purifying respirator with HEPA filters
E. Supplied-air respirator in pressure-demand mode
Correct Answer: D. Full-face piece air-purifying respirator with HEPA filters
EXPERT RATIONALE: OSHA requires at minimum a full-face piece air-purifying
respirator equipped with HEPA filters for Class I asbestos work. Higher-level
protection such as supplied-air respirators may be required depending on fiber
levels.
QUESTION 6 Class I asbestos work is defined as which of the following?
, A. Removal of asbestos-containing floor tiles
B. Removal of thermal system insulation (TSI) and surfacing ACM
C. Repair of asbestos-containing roofing materials
D. Removal of asbestos cement siding
E. Encapsulation of ACM in place
Correct Answer: B. Removal of thermal system insulation (TSI) and
surfacing ACM
EXPERT RATIONALE: OSHA defines Class I asbestos work as activities involving
the removal of thermal system insulation (TSI) and surfacing asbestos-containing
material (ACM) or presumed ACM (PACM). This is the highest-risk classification.
QUESTION 7 What does the acronym ACM stand for in asbestos abatement?
A. Airborne Contamination Monitoring
B. Asbestos-Containing Material
C. Abatement Control Measurement
D. Approved Containment Method
E. Asbestos Compliance Management
Correct Answer: B. Asbestos-Containing Material
EXPERT RATIONALE: ACM stands for Asbestos-Containing Material, defined as
any material or product that contains more than 1% asbestos by weight, as
established by OSHA and EPA regulations.
QUESTION 8 What minimum percentage of asbestos content defines a
material as ACM under EPA regulations?
A. 5%
B. 0.5%
Prep 2026/2027 – Actual Questions with
Verified Answers, Detailed Rationales &
Expert-Reviewed Study Guide PDF (Latest
Updated Edition)
• This study guide contains 200 actual-style exam questions with verified answers,
detailed EXPERT RATIONALE, and expert-reviewed content to prepare you fully for
the Texas Asbestos Abatement Supervisor certification exam.
• Use this material by reading each question carefully, selecting your answer before
checking the highlighted correct option and EXPERT RATIONALE below it —
consistent daily practice across all sections will maximize your exam readiness.
TEXAS ASBESTOS ABATEMENT SUPERVISOR EXAM PREP 2026/2027
QUESTION 1 What is the primary federal law governing asbestos abatement in
the United States?
A. Clean Air Act (CAA)
B. Resource Conservation and Recovery Act (RCRA)
C. Toxic Substances Control Act (TSCA)
D. Occupational Safety and Health Act (OSHAct)
E. National Emission Standards for Hazardous Air Pollutants (NESHAP)
Correct Answer: E. National Emission Standards for Hazardous Air
Pollutants (NESHAP)
EXPERT RATIONALE: NESHAP, found under 40 CFR Part 61 Subpart M, is the
primary federal regulation governing asbestos abatement work, demolition, and
renovation activities involving asbestos-containing materials (ACM). It sets emission
standards and procedural requirements for asbestos removal.
,QUESTION 2 In Texas, which state agency primarily oversees asbestos
abatement licensing and regulation?
A. Texas Commission on Environmental Quality (TCEQ)
B. Texas Department of State Health Services (DSHS)
C. Texas Department of Labor and Standards
D. Texas Occupational Safety Board
E. Texas Department of Licensing and Regulation (TDLR)
Correct Answer: E. Texas Department of Licensing and Regulation (TDLR)
EXPERT RATIONALE: TDLR is the primary agency in Texas responsible for
licensing asbestos abatement professionals, including supervisors, workers,
inspectors, and project designers, under the Texas Asbestos Health Protection
Rules (TAHPR).
QUESTION 3 What is the OSHA permissible exposure limit (PEL) for asbestos as
an 8-hour time-weighted average (TWA)?
A. 2.0 fibers per cubic centimeter (f/cc)
B. 0.5 f/cc
C. 0.1 f/cc
D. 1.0 f/cc
E. 0.05 f/cc
Correct Answer: C. 0.1 f/cc
EXPERT RATIONALE: OSHA's PEL for asbestos is 0.1 fiber per cubic centimeter
of air (f/cc) as an 8-hour TWA, as established under 29 CFR 1926.1101 for
construction and 29 CFR 1910.1001 for general industry.
,QUESTION 4 What is the OSHA excursion limit (EL) for asbestos exposure over
a 30-minute short-term period?
A. 0.5 f/cc
B. 1.0 f/cc
C. 2.0 f/cc
D. 0.1 f/cc
E. 5.0 f/cc
Correct Answer: B. 1.0 f/cc
EXPERT RATIONALE: OSHA sets an excursion limit of 1.0 f/cc for any 30-minute
short-term exposure. If this limit is exceeded, immediate corrective action must be
taken regardless of the 8-hour TWA.
QUESTION 5 Which type of respirator is the minimum required for Class I
asbestos work?
A. Half-face air-purifying respirator with HEPA filters
B. Single-use dust mask (N95)
C. Powered air-purifying respirator (PAPR)
D. Full-face piece air-purifying respirator with HEPA filters
E. Supplied-air respirator in pressure-demand mode
Correct Answer: D. Full-face piece air-purifying respirator with HEPA filters
EXPERT RATIONALE: OSHA requires at minimum a full-face piece air-purifying
respirator equipped with HEPA filters for Class I asbestos work. Higher-level
protection such as supplied-air respirators may be required depending on fiber
levels.
QUESTION 6 Class I asbestos work is defined as which of the following?
, A. Removal of asbestos-containing floor tiles
B. Removal of thermal system insulation (TSI) and surfacing ACM
C. Repair of asbestos-containing roofing materials
D. Removal of asbestos cement siding
E. Encapsulation of ACM in place
Correct Answer: B. Removal of thermal system insulation (TSI) and
surfacing ACM
EXPERT RATIONALE: OSHA defines Class I asbestos work as activities involving
the removal of thermal system insulation (TSI) and surfacing asbestos-containing
material (ACM) or presumed ACM (PACM). This is the highest-risk classification.
QUESTION 7 What does the acronym ACM stand for in asbestos abatement?
A. Airborne Contamination Monitoring
B. Asbestos-Containing Material
C. Abatement Control Measurement
D. Approved Containment Method
E. Asbestos Compliance Management
Correct Answer: B. Asbestos-Containing Material
EXPERT RATIONALE: ACM stands for Asbestos-Containing Material, defined as
any material or product that contains more than 1% asbestos by weight, as
established by OSHA and EPA regulations.
QUESTION 8 What minimum percentage of asbestos content defines a
material as ACM under EPA regulations?
A. 5%
B. 0.5%
