IICRC - AMRT Exam Questions & Answers
Latest 2025 Updated Solution
In general, which remediation guidelines/standards should a remediator be familiar with? - ANS ✔ -
S500 (Water) // S520 (Mold) // NY City Guidelines
The industry standard of care document for mold remediation contractors is...? - ANS ✔ - S520
Standard for Professional Mold Remediation
What does "normal fungal ecology" mean? - ANS ✔ - Condition 1 // Normal or uncontaminated
building or items // Indoor environment that may have settled spores, fungal fragments whose
identity; location and quantity are reflective of a normal fungal ecology for a similar indoor
environment // no treatment necessary
Describe a Condition 2 - ANS ✔ - Indoor environment which is primarily contaminated with settled
spores that were dispersed directly or indirectly from a condition 3 area // Spores landed on indoor
surfaces or are suspended in the air but are not actively growing // HEPA vacuuming or damp wiping
Describe a Condition 3 - ANS ✔ - Indoor environment contaminated with the presence of actual mold
growth and associated spores // Actual growth includes growth that is active or dormant, visible or
hidden
Do you find settled spores in indoor environments with no complaints? - ANS ✔ - Yes
What are "settled spores" according to the S520? - ANS ✔ - CONDITION 2 (SETTLED SPORES HAVE
AN UNUSUAL DISTRIBUTION)
The Trigger language term that defines the "standard of care" in the S500 and S520 is...? - ANS ✔ -
Should
,The Trigger language term that defines mandatory or regulatory requirements (S500 & S520) is? -
ANS ✔ - Shall
The trigger language term that defines advised or suggested (S500 & S520) is...? - ANS ✔ -
recommended
How are situations referred to in the S500 and S520 that make a project more difficult or detailed,
but the project can still be performed? - ANS ✔ - Complexities
How are situations referred to in the S500 and S520 that make a project more intricate or complex
after the start, but the project can still be performed with a change in scope? - ANS ✔ - Complications
How are situations referred to in the S500 and S520 that limit the scope and remediation activities?
- ANS ✔ - Limitations
Are there federal mold remediation regulations in the US or Canada? - ANS ✔ - No
What are we trying to protect in a microbial remediation project? - ANS ✔ - Workers health, other
occupants, unaffected area, HVAC system
What should be the first step in a microbial remediation project? - ANS ✔ - Identify and eliminate the
water source
What is the ultimate cleaning criterion (according to the ACGIH Bioaerosols) - ANS ✔ - Ability of
people to reoccur
What does engineering control mean? - ANS ✔ - Methods and procedures that we implement to
protect the worker & occupants & HVAC system
Name Engineering Controls - ANS ✔ - Isolation with Containment, Airflow Management, HEPA
filtration and controlled demolition methods
, What is not an engineering control? - ANS ✔ - PPE
What is the definition of a micron? - ANS ✔ - One millionth of a meter
How can evaluate and test an air flow and a pressure differential? - ANS ✔ - DIGITAL MONOMETER
What does the acronym HEPA stand for? - ANS ✔ - High Efficiency Particulate Air
WHAT IS THE DEFINITION OF HEPA FILTRATION? - ANS ✔ - removes 99.97% of particulate matter
of 0.3 microns and larger
What are the three main principles used for protecting people and unaffected environments? - ANS
✔ - Isolation of work area, managing air flow and controlled demolition
What are the goals in a microbial remediation project for the remediator and IEP (Indoor
Environmental Professional)? - ANS ✔ - Preloss conditions // safe & sanitary // Condition 1 - normal
fungal ecology
What factors are necessary for mold growth to occur? - ANS ✔ - Water source
What is the best way to prevent mold growth in a building? - ANS ✔ - Keep building dry and when
wet, dry immediately and expediently
What can create odors in wet buildings? - ANS ✔ - Wet building materials
Define positive pressure in a space? - ANS ✔ - When air is supplied to a space than taken out
Define negative pressure in a space? - ANS ✔ - When air is taken out of the space
What is a local containment? - ANS ✔ - Enclosure in a work area that is contained with poly
Latest 2025 Updated Solution
In general, which remediation guidelines/standards should a remediator be familiar with? - ANS ✔ -
S500 (Water) // S520 (Mold) // NY City Guidelines
The industry standard of care document for mold remediation contractors is...? - ANS ✔ - S520
Standard for Professional Mold Remediation
What does "normal fungal ecology" mean? - ANS ✔ - Condition 1 // Normal or uncontaminated
building or items // Indoor environment that may have settled spores, fungal fragments whose
identity; location and quantity are reflective of a normal fungal ecology for a similar indoor
environment // no treatment necessary
Describe a Condition 2 - ANS ✔ - Indoor environment which is primarily contaminated with settled
spores that were dispersed directly or indirectly from a condition 3 area // Spores landed on indoor
surfaces or are suspended in the air but are not actively growing // HEPA vacuuming or damp wiping
Describe a Condition 3 - ANS ✔ - Indoor environment contaminated with the presence of actual mold
growth and associated spores // Actual growth includes growth that is active or dormant, visible or
hidden
Do you find settled spores in indoor environments with no complaints? - ANS ✔ - Yes
What are "settled spores" according to the S520? - ANS ✔ - CONDITION 2 (SETTLED SPORES HAVE
AN UNUSUAL DISTRIBUTION)
The Trigger language term that defines the "standard of care" in the S500 and S520 is...? - ANS ✔ -
Should
,The Trigger language term that defines mandatory or regulatory requirements (S500 & S520) is? -
ANS ✔ - Shall
The trigger language term that defines advised or suggested (S500 & S520) is...? - ANS ✔ -
recommended
How are situations referred to in the S500 and S520 that make a project more difficult or detailed,
but the project can still be performed? - ANS ✔ - Complexities
How are situations referred to in the S500 and S520 that make a project more intricate or complex
after the start, but the project can still be performed with a change in scope? - ANS ✔ - Complications
How are situations referred to in the S500 and S520 that limit the scope and remediation activities?
- ANS ✔ - Limitations
Are there federal mold remediation regulations in the US or Canada? - ANS ✔ - No
What are we trying to protect in a microbial remediation project? - ANS ✔ - Workers health, other
occupants, unaffected area, HVAC system
What should be the first step in a microbial remediation project? - ANS ✔ - Identify and eliminate the
water source
What is the ultimate cleaning criterion (according to the ACGIH Bioaerosols) - ANS ✔ - Ability of
people to reoccur
What does engineering control mean? - ANS ✔ - Methods and procedures that we implement to
protect the worker & occupants & HVAC system
Name Engineering Controls - ANS ✔ - Isolation with Containment, Airflow Management, HEPA
filtration and controlled demolition methods
, What is not an engineering control? - ANS ✔ - PPE
What is the definition of a micron? - ANS ✔ - One millionth of a meter
How can evaluate and test an air flow and a pressure differential? - ANS ✔ - DIGITAL MONOMETER
What does the acronym HEPA stand for? - ANS ✔ - High Efficiency Particulate Air
WHAT IS THE DEFINITION OF HEPA FILTRATION? - ANS ✔ - removes 99.97% of particulate matter
of 0.3 microns and larger
What are the three main principles used for protecting people and unaffected environments? - ANS
✔ - Isolation of work area, managing air flow and controlled demolition
What are the goals in a microbial remediation project for the remediator and IEP (Indoor
Environmental Professional)? - ANS ✔ - Preloss conditions // safe & sanitary // Condition 1 - normal
fungal ecology
What factors are necessary for mold growth to occur? - ANS ✔ - Water source
What is the best way to prevent mold growth in a building? - ANS ✔ - Keep building dry and when
wet, dry immediately and expediently
What can create odors in wet buildings? - ANS ✔ - Wet building materials
Define positive pressure in a space? - ANS ✔ - When air is supplied to a space than taken out
Define negative pressure in a space? - ANS ✔ - When air is taken out of the space
What is a local containment? - ANS ✔ - Enclosure in a work area that is contained with poly
