TEXAS OSSF INSTALLER I LICENSE EXAM PREP – 200
EXAM QUESTIONS WITH ANSWERS & RATIONALES
1. Which Texas state agency has primary regulatory authority over On-
Site Sewage Facilities (OSSFs)?
A. Texas Department of State Health Services (DSHS)
B. Texas Commission on Environmental Quality (TCEQ)
C. Texas Water Development Board (TWDB)
D. Environmental Protection Agency (EPA)
Answer: B
Rationale: The TCEQ is the state agency responsible for adopting and
enforcing OSSF rules, issuing licenses, and overseeing local permitting
programs.
2. Statewide regulation of OSSFs in Texas began in which year?
A. 1979
B. September 1989
C. 1997
D. 2005
Answer: B
Rationale: Before September 1989, there was no statewide regulatory
framework for OSSFs in Texas; regulation was handled by local
governments.
3. An OSSF Installer I license authorizes an individual to install all of
the following EXCEPT:
A. Septic tanks
,B. Absorptive drainfields
C. Aerobic treatment units
D. Pumped effluent drainfields
Answer: C
Rationale: Installer I is limited to standard systems (septic tanks and
drainfields). Aerobic treatment units require an Installer II license.
4. What is the minimum liability insurance coverage required for an
OSSF Installer I in Texas?
A. $100,000 per occurrence / $200,000 aggregate
B. $300,000 aggregate
C. $500,000 aggregate
D. $1,000,000 aggregate
**Answer: B**
**Rationale:** TCEQ requires OSSF Installer I license holders to carry
minimum liability insurance of $300,000 aggregate.
5. According to the Texas Water Code, what is the maximum penalty
per violation per day for OSSF rule violations?
A. $1,000
B. $5,000
C. $10,000
D. $25,000
Answer: C
Rationale: Texas Water Code §7.052 allows up to $10,000 per violation
per day for OSSF rule violations.
6. Which form is used for OSSF installation reporting in Texas?
A. TCEQ Form 20054
B. EPA Form 3500
,C. TCEQ Form 20376
D. TCEQ Form 00500
Answer: A
Rationale: Form 20054 (On-Site Sewage Facility Installation Report)
must be submitted to the permitting authority within 30 days of
completion.
7. An OSSF Installer I must provide the owner with a completed
installation report within what timeframe?
A. 3 days
B. 10 days
C. 30 days
D. 60 days
Answer: C
Rationale: TCEQ rules require the installer to submit the installation
report to the permitting authority within 30 days of completion.
8. What is the minimum continuing education (CE) requirement per 3-
year license cycle for OSSF Installers?
A. 4 hours
B. 8 hours
C. 16 hours
D. 24 hours
Answer: D
Rationale: Renewal requires 24 hours of TCEQ-approved continuing
education courses per 3-year license cycle.
9. The Texas statute that establishes OSSF regulations and the
authority of TCEQ is found in:
A. Title 30, Texas Administrative Code Chapter 285
, B. Title 5, Texas Health and Safety Code Chapter 366
C. Texas Water Code Chapter 7
D. Clean Water Act Section 402
Answer: B
Rationale: Title 5, Texas Health and Safety Code Chapter 366 is the
enabling statute for OSSF regulations and TCEQ authority.
10. Which TAC chapter establishes minimum standards for planning
materials, construction, installation, alteration, repair, permitting, and
inspection of OSSFs?
A. 30 TAC Chapter 30
B. 30 TAC Chapter 285
C. 30 TAC Chapter 290
D. 30 TAC Chapter 335
Answer: B
Rationale: 30 TAC Chapter 285 establishes the minimum standards for
OSSFs in Texas.
11. The requirement for OSSF installers to be licensed went into effect
in what year?
A. 1989
B. 1990
C. 1998
D. 2009
Answer: B
Rationale: The requirement for installers to be licensed went into effect
in 1990.
12. Which TAC chapter addresses the licensing of installers, designated
representatives, and site evaluators?
EXAM QUESTIONS WITH ANSWERS & RATIONALES
1. Which Texas state agency has primary regulatory authority over On-
Site Sewage Facilities (OSSFs)?
A. Texas Department of State Health Services (DSHS)
B. Texas Commission on Environmental Quality (TCEQ)
C. Texas Water Development Board (TWDB)
D. Environmental Protection Agency (EPA)
Answer: B
Rationale: The TCEQ is the state agency responsible for adopting and
enforcing OSSF rules, issuing licenses, and overseeing local permitting
programs.
2. Statewide regulation of OSSFs in Texas began in which year?
A. 1979
B. September 1989
C. 1997
D. 2005
Answer: B
Rationale: Before September 1989, there was no statewide regulatory
framework for OSSFs in Texas; regulation was handled by local
governments.
3. An OSSF Installer I license authorizes an individual to install all of
the following EXCEPT:
A. Septic tanks
,B. Absorptive drainfields
C. Aerobic treatment units
D. Pumped effluent drainfields
Answer: C
Rationale: Installer I is limited to standard systems (septic tanks and
drainfields). Aerobic treatment units require an Installer II license.
4. What is the minimum liability insurance coverage required for an
OSSF Installer I in Texas?
A. $100,000 per occurrence / $200,000 aggregate
B. $300,000 aggregate
C. $500,000 aggregate
D. $1,000,000 aggregate
**Answer: B**
**Rationale:** TCEQ requires OSSF Installer I license holders to carry
minimum liability insurance of $300,000 aggregate.
5. According to the Texas Water Code, what is the maximum penalty
per violation per day for OSSF rule violations?
A. $1,000
B. $5,000
C. $10,000
D. $25,000
Answer: C
Rationale: Texas Water Code §7.052 allows up to $10,000 per violation
per day for OSSF rule violations.
6. Which form is used for OSSF installation reporting in Texas?
A. TCEQ Form 20054
B. EPA Form 3500
,C. TCEQ Form 20376
D. TCEQ Form 00500
Answer: A
Rationale: Form 20054 (On-Site Sewage Facility Installation Report)
must be submitted to the permitting authority within 30 days of
completion.
7. An OSSF Installer I must provide the owner with a completed
installation report within what timeframe?
A. 3 days
B. 10 days
C. 30 days
D. 60 days
Answer: C
Rationale: TCEQ rules require the installer to submit the installation
report to the permitting authority within 30 days of completion.
8. What is the minimum continuing education (CE) requirement per 3-
year license cycle for OSSF Installers?
A. 4 hours
B. 8 hours
C. 16 hours
D. 24 hours
Answer: D
Rationale: Renewal requires 24 hours of TCEQ-approved continuing
education courses per 3-year license cycle.
9. The Texas statute that establishes OSSF regulations and the
authority of TCEQ is found in:
A. Title 30, Texas Administrative Code Chapter 285
, B. Title 5, Texas Health and Safety Code Chapter 366
C. Texas Water Code Chapter 7
D. Clean Water Act Section 402
Answer: B
Rationale: Title 5, Texas Health and Safety Code Chapter 366 is the
enabling statute for OSSF regulations and TCEQ authority.
10. Which TAC chapter establishes minimum standards for planning
materials, construction, installation, alteration, repair, permitting, and
inspection of OSSFs?
A. 30 TAC Chapter 30
B. 30 TAC Chapter 285
C. 30 TAC Chapter 290
D. 30 TAC Chapter 335
Answer: B
Rationale: 30 TAC Chapter 285 establishes the minimum standards for
OSSFs in Texas.
11. The requirement for OSSF installers to be licensed went into effect
in what year?
A. 1989
B. 1990
C. 1998
D. 2009
Answer: B
Rationale: The requirement for installers to be licensed went into effect
in 1990.
12. Which TAC chapter addresses the licensing of installers, designated
representatives, and site evaluators?
