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MISSISSIPPI INDIVIDUAL ONSITE WASTEWATER
INSTALLER LICENSING Exam 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS
EXAM QUESTIONS WILL COME FROM HERE (100%
Latest Already Graded A+
1. Under the Mississippi Individual On-Site Wastewater Disposal System
Law, what is the minimum passing score required on the closed-book
examination for a person to become a Certified Installer?
A) 65%
B) 70%
C) 75%
D) 80%
Answer: D
Rationale: Mississippi regulations explicitly require that an applicant
must achieve a score of 80% or better on the closed-book examination
to demonstrate their knowledge and comprehension of the Individual
On-site Wastewater Disposal System Regulations. This high standard
ensures that certified installers possess a thorough understanding of the
rules and best practices.
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2. According to Mississippi State Department of Health (MSDH)
regulations, what is the correct certification renewal cycle for a
Certified Installer?
A) Every 1 year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Answer: C
Rationale: Mississippi Code § 41-67-25(5) and related administrative
rules stipulate that the department shall provide for the renewal of
installer certifications once every three years. This triennial renewal
requirement ensures that installers remain current with evolving
technologies and regulatory updates.
3. An individual who installs an onsite wastewater system without a
valid Mississippi installer certification is subject to which of the
following penalties?
A) A written warning for the first offense only
B) A fine of up to $500.00 per day for each violation
C) A fine not to exceed $1,000.00 per violation
D) Immediate revocation of any other state licenses
Answer: C
Rationale: Mississippi Code § 41-67-35 establishes that any person who
violates any provision of the Individual On-site Wastewater Disposal
System Law, including installing without certification, shall be subject to
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a civil penalty of not more than $1,000.00 for each violation. Each day
of continued violation may constitute a separate offense.
4. What is the minimum amount of liability insurance that a Certified
Installer must maintain in Mississippi?
A) $100,000.00
B) $300,000.00
C) $500,000.00
D) $1,000,000.00
Answer: B
Rationale: MSDH regulations require all certified installers to maintain
general liability insurance in the amount of at least $300,000.00 to
protect property owners and the public from potential damages arising
from installation activities.
5. The Mississippi State Department of Health has the authority to
suspend or revoke an installer certification for which of the following
reasons?
A) Failure to pay the renewal fee on time
B) Installing a system that does not comply with approved plans
C) Conviction of a felony unrelated to wastewater
D) All of the above
Answer: B
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Rationale: While failure to pay fees may result in non-renewal and
felony convictions may be considered, the primary grounds for
suspension or revocation include gross negligence, incompetence,
fraudulent practices, or installing systems that materially deviate from
approved designs, thereby endangering public health.
6. How many hours of continuing education are required for a
Mississippi Certified Installer to renew their certification?
A) 4 hours
B) 6 hours
C) 8 hours
D) 12 hours
Answer: C
Rationale: Mississippi Administrative Code, Title 15, Part 18, Subpart 77,
Rule 6.5 requires certified installers to complete at least eight hours of
approved continuing education during each three-year renewal period
to ensure they remain updated on regulatory changes and technological
advancements.
7. A Certified Installer must notify the MSDH or the local permitting
authority at least how many hours before commencing the installation
of a new onsite wastewater system?
A) 24 hours
B) 48 hours
C) 72 hours
MISSISSIPPI INDIVIDUAL ONSITE WASTEWATER
INSTALLER LICENSING Exam 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS
EXAM QUESTIONS WILL COME FROM HERE (100%
Latest Already Graded A+
1. Under the Mississippi Individual On-Site Wastewater Disposal System
Law, what is the minimum passing score required on the closed-book
examination for a person to become a Certified Installer?
A) 65%
B) 70%
C) 75%
D) 80%
Answer: D
Rationale: Mississippi regulations explicitly require that an applicant
must achieve a score of 80% or better on the closed-book examination
to demonstrate their knowledge and comprehension of the Individual
On-site Wastewater Disposal System Regulations. This high standard
ensures that certified installers possess a thorough understanding of the
rules and best practices.
,2|Page
2. According to Mississippi State Department of Health (MSDH)
regulations, what is the correct certification renewal cycle for a
Certified Installer?
A) Every 1 year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Answer: C
Rationale: Mississippi Code § 41-67-25(5) and related administrative
rules stipulate that the department shall provide for the renewal of
installer certifications once every three years. This triennial renewal
requirement ensures that installers remain current with evolving
technologies and regulatory updates.
3. An individual who installs an onsite wastewater system without a
valid Mississippi installer certification is subject to which of the
following penalties?
A) A written warning for the first offense only
B) A fine of up to $500.00 per day for each violation
C) A fine not to exceed $1,000.00 per violation
D) Immediate revocation of any other state licenses
Answer: C
Rationale: Mississippi Code § 41-67-35 establishes that any person who
violates any provision of the Individual On-site Wastewater Disposal
System Law, including installing without certification, shall be subject to
,3|Page
a civil penalty of not more than $1,000.00 for each violation. Each day
of continued violation may constitute a separate offense.
4. What is the minimum amount of liability insurance that a Certified
Installer must maintain in Mississippi?
A) $100,000.00
B) $300,000.00
C) $500,000.00
D) $1,000,000.00
Answer: B
Rationale: MSDH regulations require all certified installers to maintain
general liability insurance in the amount of at least $300,000.00 to
protect property owners and the public from potential damages arising
from installation activities.
5. The Mississippi State Department of Health has the authority to
suspend or revoke an installer certification for which of the following
reasons?
A) Failure to pay the renewal fee on time
B) Installing a system that does not comply with approved plans
C) Conviction of a felony unrelated to wastewater
D) All of the above
Answer: B
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Rationale: While failure to pay fees may result in non-renewal and
felony convictions may be considered, the primary grounds for
suspension or revocation include gross negligence, incompetence,
fraudulent practices, or installing systems that materially deviate from
approved designs, thereby endangering public health.
6. How many hours of continuing education are required for a
Mississippi Certified Installer to renew their certification?
A) 4 hours
B) 6 hours
C) 8 hours
D) 12 hours
Answer: C
Rationale: Mississippi Administrative Code, Title 15, Part 18, Subpart 77,
Rule 6.5 requires certified installers to complete at least eight hours of
approved continuing education during each three-year renewal period
to ensure they remain updated on regulatory changes and technological
advancements.
7. A Certified Installer must notify the MSDH or the local permitting
authority at least how many hours before commencing the installation
of a new onsite wastewater system?
A) 24 hours
B) 48 hours
C) 72 hours
