1|Page
OSSF INSTALLER 1 LICENSE ACTUAL EXAM
NEWEST 2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+|BRAND NEW!!
30 TAC Chapter 285 - .....ANSWER ...✔✔ This
chapter establishes minimum standards for planning
materials, construction, installation, alteration, repair,
extension, operation, maintenance, permitting, and
inspection of OSSFs. This chapter also provides the
procedures for the designation of local governmental
entities as authorized agents.
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.
,2|Page
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
,3|Page
- 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
, 4|Page
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
OSSF INSTALLER 1 LICENSE ACTUAL EXAM
NEWEST 2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+|BRAND NEW!!
30 TAC Chapter 285 - .....ANSWER ...✔✔ This
chapter establishes minimum standards for planning
materials, construction, installation, alteration, repair,
extension, operation, maintenance, permitting, and
inspection of OSSFs. This chapter also provides the
procedures for the designation of local governmental
entities as authorized agents.
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.
,2|Page
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
,3|Page
- 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
, 4|Page
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
