OSSF Installer 2 License Exam |Complete Exam Questions with
100% Verified Correct Answers with Detailed Rationales |
Latest Update 2026/2027 | Already Graded A+
Question 1. What does OSSF stand for?
A. On-Site Sewage Facility
B. Operating Sewage Safety Facility
C. On-Site Soil Filtration
D. Organic Sewage Sanitation Facility
Correct Answer: A. On-Site Sewage Facility
Rationale: OSSF stands for On-Site Sewage Facility. These systems treat and
dispose of wastewater at or near the property where it is generated rather
than sending it to a centralized municipal wastewater treatment plant.
Question 2. Which agency administers the Texas OSSF licensing program?
A. Texas Department of Transportation
B. Texas Commission on Environmental Quality
C. Texas Department of Agriculture
D. Texas Water Development Board
Correct Answer: B. Texas Commission on Environmental Quality
Rationale: The Texas Commission on Environmental Quality (TCEQ)
administers the state's OSSF occupational licensing program. Installers, site
evaluators, designated representatives, and certain maintenance
professionals must meet applicable TCEQ requirements.
Question 3. What is the primary authority for statewide OSSF technical
requirements in Texas?
A. 30 TAC Chapter 285
B. 30 TAC Chapter 100
C. Texas Penal Code Chapter 285
D. Local building codes only
pg. 1
,Correct Answer: A. 30 TAC Chapter 285
Rationale: 30 TAC Chapter 285 contains major statewide requirements
governing on-site sewage facilities. An Installer II candidate should be familiar
with its requirements concerning installation, construction, treatment,
disposal, and related site considerations.
Question 4. Which Texas regulation addresses OSSF occupational licenses
and registrations?
A. 30 TAC Chapter 30, Subchapter G
B. 30 TAC Chapter 10
C. 16 TAC Chapter 100
D. 25 TAC Chapter 1
Correct Answer: A. 30 TAC Chapter 30, Subchapter G
Rationale: Occupational licensing and registration requirements for OSSF
professionals are addressed in 30 TAC Chapter 30, Subchapter G. Chapter 285
contains the broader OSSF technical and regulatory requirements.
Question 5. What is an Installer II authorized to install?
A. Only conventional septic tanks
B. Only aerobic systems
C. All types of OSSF systems
D. Only residential systems
Correct Answer: C. All types of OSSF systems
Rationale: An Installer II license provides broader installation authority than
an Installer I license. An Installer II is authorized to construct all types of
OSSFs within the scope of the applicable rules.
Question 6. Which statement best distinguishes an Installer I from an
Installer II?
A. Installer I has broader authority than Installer II
pg. 2
,B. Installer II is authorized to install all types of OSSFs
C. Installer II can only install conventional systems
D. There is no difference between the licenses
Correct Answer: B. Installer II is authorized to install all types of OSSFs
Rationale: Installer I authorization is limited to specified types of standard
OSSF systems. Installer II has broader authority and can construct all types of
OSSFs under the applicable Texas requirements.
Question 7. What basic training course is required for a new Installer II
applicant?
A. Site Evaluator Basic Training
B. Installer I Basic Training only
C. Installer II Basic Training
D. Advanced Maintenance Provider Training
Correct Answer: C. Installer II Basic Training
Rationale: Applicants for an Installer II license must complete the approved
Installer II Basic Training course before applying. Completion of the required
training is part of the licensing pathway.
Question 8. An individual with an Installer I license generally must have held
that license for at least how long before applying for Installer II?
A. 30 days
B. 6 months
C. 1 year
D. 5 years
Correct Answer: C. 1 year
Rationale: Under the current licensing requirements, an applicant
progressing from Installer I to Installer II must have held the Installer I license
for at least one year and meet the applicable experience documentation
requirements.
pg. 3
, Question 9. An OSSF apprentice seeking the Installer II license generally must
have held the apprentice registration for at least:
A. 3 months
B. 6 months
C. 1 year
D. 2 years
Correct Answer: D. 2 years
Rationale: The current pathway allows an apprentice to qualify toward
Installer II after holding the apprentice registration for at least two years,
together with the required experience documentation and other licensing
requirements.
Question 10. For an Installer I-to-II applicant, which may be used to
document the required installation experience?
A. Appropriate sworn statements
B. A property tax bill
C. A driver's license alone
D. A utility bill
Correct Answer: A. Appropriate sworn statements
Rationale: Applicants progressing from Installer I to Installer II must provide
acceptable documentation of qualifying installation experience. Sworn
statements from appropriate individuals may be used to verify qualifying
installations.
Question 11. What is the purpose of experience documentation for an
Installer II applicant?
A. To demonstrate qualifying practical OSSF experience
B. To establish property ownership
C. To determine soil color
D. To replace the licensing examination
pg. 4
100% Verified Correct Answers with Detailed Rationales |
Latest Update 2026/2027 | Already Graded A+
Question 1. What does OSSF stand for?
A. On-Site Sewage Facility
B. Operating Sewage Safety Facility
C. On-Site Soil Filtration
D. Organic Sewage Sanitation Facility
Correct Answer: A. On-Site Sewage Facility
Rationale: OSSF stands for On-Site Sewage Facility. These systems treat and
dispose of wastewater at or near the property where it is generated rather
than sending it to a centralized municipal wastewater treatment plant.
Question 2. Which agency administers the Texas OSSF licensing program?
A. Texas Department of Transportation
B. Texas Commission on Environmental Quality
C. Texas Department of Agriculture
D. Texas Water Development Board
Correct Answer: B. Texas Commission on Environmental Quality
Rationale: The Texas Commission on Environmental Quality (TCEQ)
administers the state's OSSF occupational licensing program. Installers, site
evaluators, designated representatives, and certain maintenance
professionals must meet applicable TCEQ requirements.
Question 3. What is the primary authority for statewide OSSF technical
requirements in Texas?
A. 30 TAC Chapter 285
B. 30 TAC Chapter 100
C. Texas Penal Code Chapter 285
D. Local building codes only
pg. 1
,Correct Answer: A. 30 TAC Chapter 285
Rationale: 30 TAC Chapter 285 contains major statewide requirements
governing on-site sewage facilities. An Installer II candidate should be familiar
with its requirements concerning installation, construction, treatment,
disposal, and related site considerations.
Question 4. Which Texas regulation addresses OSSF occupational licenses
and registrations?
A. 30 TAC Chapter 30, Subchapter G
B. 30 TAC Chapter 10
C. 16 TAC Chapter 100
D. 25 TAC Chapter 1
Correct Answer: A. 30 TAC Chapter 30, Subchapter G
Rationale: Occupational licensing and registration requirements for OSSF
professionals are addressed in 30 TAC Chapter 30, Subchapter G. Chapter 285
contains the broader OSSF technical and regulatory requirements.
Question 5. What is an Installer II authorized to install?
A. Only conventional septic tanks
B. Only aerobic systems
C. All types of OSSF systems
D. Only residential systems
Correct Answer: C. All types of OSSF systems
Rationale: An Installer II license provides broader installation authority than
an Installer I license. An Installer II is authorized to construct all types of
OSSFs within the scope of the applicable rules.
Question 6. Which statement best distinguishes an Installer I from an
Installer II?
A. Installer I has broader authority than Installer II
pg. 2
,B. Installer II is authorized to install all types of OSSFs
C. Installer II can only install conventional systems
D. There is no difference between the licenses
Correct Answer: B. Installer II is authorized to install all types of OSSFs
Rationale: Installer I authorization is limited to specified types of standard
OSSF systems. Installer II has broader authority and can construct all types of
OSSFs under the applicable Texas requirements.
Question 7. What basic training course is required for a new Installer II
applicant?
A. Site Evaluator Basic Training
B. Installer I Basic Training only
C. Installer II Basic Training
D. Advanced Maintenance Provider Training
Correct Answer: C. Installer II Basic Training
Rationale: Applicants for an Installer II license must complete the approved
Installer II Basic Training course before applying. Completion of the required
training is part of the licensing pathway.
Question 8. An individual with an Installer I license generally must have held
that license for at least how long before applying for Installer II?
A. 30 days
B. 6 months
C. 1 year
D. 5 years
Correct Answer: C. 1 year
Rationale: Under the current licensing requirements, an applicant
progressing from Installer I to Installer II must have held the Installer I license
for at least one year and meet the applicable experience documentation
requirements.
pg. 3
, Question 9. An OSSF apprentice seeking the Installer II license generally must
have held the apprentice registration for at least:
A. 3 months
B. 6 months
C. 1 year
D. 2 years
Correct Answer: D. 2 years
Rationale: The current pathway allows an apprentice to qualify toward
Installer II after holding the apprentice registration for at least two years,
together with the required experience documentation and other licensing
requirements.
Question 10. For an Installer I-to-II applicant, which may be used to
document the required installation experience?
A. Appropriate sworn statements
B. A property tax bill
C. A driver's license alone
D. A utility bill
Correct Answer: A. Appropriate sworn statements
Rationale: Applicants progressing from Installer I to Installer II must provide
acceptable documentation of qualifying installation experience. Sworn
statements from appropriate individuals may be used to verify qualifying
installations.
Question 11. What is the purpose of experience documentation for an
Installer II applicant?
A. To demonstrate qualifying practical OSSF experience
B. To establish property ownership
C. To determine soil color
D. To replace the licensing examination
pg. 4
