DESIGNATED REPRESENTATIVE OSSF EXAM
PREP STUDY GUIDE 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉ 30 TAC Chapter 30. Answer: The licensing of installers, designated
representatives, and site evaluators and the registration of apprentices is
included in this chapter.
◉ Title 5, Chapter 366 Texas Health and Safety Code. Answer: The
Texas statute establishing OSSF regulations and regulators.
◉ September 1989. Answer: The year in which statewide regulation of
OSSFs began
◉ OSSF minimum requirements. Answer: 1) produce no more than
5,000 g of waste daily
2) waste must originate and be disposed of on site
3) wastewater must be disposed in soil or as vapor
◉ 1990. Answer: The requirement for installers to be licensed went into
effect
,◉ 1998. Answer: The requirement for Installer II and DR to be licensed
went into effect
◉ 2002. Answer: The requirement for SE to be licensed went into effect
◉ 2009. Answer: The requirement for MP to be licensed went into effect
◉ Installer II extra requirements. Answer: - one year as Installer I and 3
installations w/notarized statements
- or two years as apprentice with six installations w/notarized statements
◉ SE extra requirements. Answer: must have previous license of one:
Installer II
DR
PE
RS
Professional Geoscientist
◉ MP extra requirements. Answer: Installer II, Class C Wastewater
License, or documented experience of 3 years as maintenance technician
◉ Maintenance Technician and Apprentice note. Answer: Only license
that doesn't require exam, Apprentice does not require class either
,◉ 3 years, 24 hours. Answer: OSSF licenses are issued for a term of
____ years and require ____ hours for renewal
◉ Daily. Answer: How often must an installer check an apprentice's
work?
◉ Ten Acre Rule. Answer: An OSSF for a single-family residence on a
10 acre lot or more with disposal lines at least 100ft from property line
are not required to apply for a permit for a new construction.
◉ Permit Processing Steps. Answer: 1) Site Evaluation w/ written report
2) Selection of OSSF based on Site Evaluation
3) System planned
4) Permit application and planning materials submitted
5) Application reviewed and approved or denied within 30 days
6) Authorization to Construct ATC issued and valid for 1 year
7) Construction
8) Inspection covering all parts of system. If failed, 7 days to send letter
of deficiencies
9) License to Operate LTO issued
◉ OSSF permit application should include:. Answer: - Site Evaluation
, - Legal description of property
- Affidavits as required
- Maintenance contract
- Design Calculations
- Equipment/Material Specifications
- Scale drawing showing all features effecting operation of disposal
system
◉ - Criminal Penalties
- Injunction or civil suit
- Administrative Penalties. Answer: Legal Penalties for violating OSSF
rules
◉ Criminal Penalties. Answer: Initiated in court through district or
county attorney by either authorized agent or TCEQ. Often
misdemeanors.
◉ Injunction or Civil Suit. Answer: Can only be initiated by TCEQ
through Attorney General. Local government may request TCEQ to
initiate enforcement or pursue civil action. TCEQ may choose not to.
◉ Administrative Penalites. Answer: May be assessed by TCEQ against
a person in violation of the rules, regulations, or OSSF permit. May
request enforcement from Attorney General.
PREP STUDY GUIDE 2026 QUESTIONS WITH
ANSWERS GRADED A+
◉ 30 TAC Chapter 30. Answer: The licensing of installers, designated
representatives, and site evaluators and the registration of apprentices is
included in this chapter.
◉ Title 5, Chapter 366 Texas Health and Safety Code. Answer: The
Texas statute establishing OSSF regulations and regulators.
◉ September 1989. Answer: The year in which statewide regulation of
OSSFs began
◉ OSSF minimum requirements. Answer: 1) produce no more than
5,000 g of waste daily
2) waste must originate and be disposed of on site
3) wastewater must be disposed in soil or as vapor
◉ 1990. Answer: The requirement for installers to be licensed went into
effect
,◉ 1998. Answer: The requirement for Installer II and DR to be licensed
went into effect
◉ 2002. Answer: The requirement for SE to be licensed went into effect
◉ 2009. Answer: The requirement for MP to be licensed went into effect
◉ Installer II extra requirements. Answer: - one year as Installer I and 3
installations w/notarized statements
- or two years as apprentice with six installations w/notarized statements
◉ SE extra requirements. Answer: must have previous license of one:
Installer II
DR
PE
RS
Professional Geoscientist
◉ MP extra requirements. Answer: Installer II, Class C Wastewater
License, or documented experience of 3 years as maintenance technician
◉ Maintenance Technician and Apprentice note. Answer: Only license
that doesn't require exam, Apprentice does not require class either
,◉ 3 years, 24 hours. Answer: OSSF licenses are issued for a term of
____ years and require ____ hours for renewal
◉ Daily. Answer: How often must an installer check an apprentice's
work?
◉ Ten Acre Rule. Answer: An OSSF for a single-family residence on a
10 acre lot or more with disposal lines at least 100ft from property line
are not required to apply for a permit for a new construction.
◉ Permit Processing Steps. Answer: 1) Site Evaluation w/ written report
2) Selection of OSSF based on Site Evaluation
3) System planned
4) Permit application and planning materials submitted
5) Application reviewed and approved or denied within 30 days
6) Authorization to Construct ATC issued and valid for 1 year
7) Construction
8) Inspection covering all parts of system. If failed, 7 days to send letter
of deficiencies
9) License to Operate LTO issued
◉ OSSF permit application should include:. Answer: - Site Evaluation
, - Legal description of property
- Affidavits as required
- Maintenance contract
- Design Calculations
- Equipment/Material Specifications
- Scale drawing showing all features effecting operation of disposal
system
◉ - Criminal Penalties
- Injunction or civil suit
- Administrative Penalties. Answer: Legal Penalties for violating OSSF
rules
◉ Criminal Penalties. Answer: Initiated in court through district or
county attorney by either authorized agent or TCEQ. Often
misdemeanors.
◉ Injunction or Civil Suit. Answer: Can only be initiated by TCEQ
through Attorney General. Local government may request TCEQ to
initiate enforcement or pursue civil action. TCEQ may choose not to.
◉ Administrative Penalites. Answer: May be assessed by TCEQ against
a person in violation of the rules, regulations, or OSSF permit. May
request enforcement from Attorney General.
