Texas LP-Gas Bobtail Driver
TEXAS LP-GAS BOBTAIL DRIVER CERTIFICATION |
EXAM QUESTIONS AND CORRECT ANSWERS |
LATEST 2026/2027
RAILROAD COMMISSION OF TEXAS - LP-GAS CERTIFICATION TEXAS LP-
GAS BOBTAIL DRIVER
1. Which state agency is responsible for regulating LP-gas safety in
Texas?
A. The Texas Department of Transportation
B. The Railroad Commission of Texas through its Alternative Fuels
Safety department
C. The Texas Department of Licensing and Regulation
D. The Texas Commission on Environmental Quality
B. The Railroad Commission of Texas through its Alternative Fuels
Safety department
LP-gas activities in Texas fall under the Railroad Commission,
administered by its Alternative Fuels Safety (AFS) department.
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, Texas LP-Gas Bobtail Driver
2. The Texas LP-Gas Safety Rules are found in which part of the Texas
Administrative Code?
A. 16 TAC Chapter 3
B. 30 TAC Chapter 106
C. 37 TAC Chapter 4
D. 16 TAC Chapter 9
D. 16 TAC Chapter 9
Title 16, Part 1, Chapter 9 contains the LP-Gas Safety Rules adopted by
the Railroad Commission.
3. Under the Texas LP-Gas Safety Rules, a bobtail driver is an
individual who operates an LP-gas cargo tank motor vehicle in metered
delivery service with a water capacity of no more than:
A. 3,500 gallons
B. 1,000 gallons
C. 10,000 gallons
D. 5,000 gallons
D. 5,000 gallons
The Chapter 9 definition limits a bobtail to 5,000 gallons water capacity
or less in metered delivery service.
4. As defined in the Texas rules, a "transport" is:
A. Only a semitrailer that carries more than 9,000 gallons
B. A railcar used to supply a bulk plant
C. Any vehicle that carries cylinders for exchange
D. Any bobtail or semitrailer equipped with one or more containers
D. Any bobtail or semitrailer equipped with one or more
containers
The rules define a transport broadly as any bobtail or semitrailer fitted
with one or more containers.
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, Texas LP-Gas Bobtail Driver
5. A "specification unit" under the Texas rules is an LP-gas transport
constructed to which DOT specification?
A. MC-306 or MC-307
B. MC-330 or MC-331
C. DOT-4BA or DOT-4BW
D. MC-312 or MC-338
B. MC-330 or MC-331
Specification units are transports built to the pressure cargo tank
specifications MC-330 or MC-331.
6. Before a bobtail can be placed into LP-gas service in Texas, the
operator must:
A. Have the manufacturer file the unit with the Commission
B. Register the unit with AFS in the name under which the operator
does business in Texas
C. Register the unit only with the county tax office
D. Obtain a certificate of inspection from the insurance carrier
B. Register the unit with AFS in the name under which the
operator does business in Texas
The operator, not necessarily the owner, must register the transport
with AFS before it is used in LP-gas service.
7. Who is responsible for registering an LP-gas transport with AFS
when the truck is leased from another company?
A. The registered owner of the truck
B. The driver assigned to the truck
C. The company that built the cargo tank
D. The person who operates the transport, regardless of ownership
D. The person who operates the transport, regardless of
ownership
Registration is the duty of the operator regardless of who owns the
transport.
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, Texas LP-Gas Bobtail Driver
8. The non-refundable Texas registration fee for each bobtail truck
equipped with LP-gas cargo tanks is:
A. $150
B. $75
C. $270
D. $500
C. $270
The Commission charges $270 per bobtail, semitrailer, or other vehicle
equipped with LP-gas cargo tanks.
9. A person shall not operate an LP-gas transport unit in Texas unless
which item has been properly affixed or AFS has specifically approved
its operation?
A. LPG Form 1
B. LPG Form 16
C. LPG Form 4
D. LPG Form 7T
C. LPG Form 4
The LPG Form 4 decal shows the unit is registered and must be affixed
before operation.
10. Which form is submitted to register or re-register an LP-gas cargo
tank in Texas?
A. LPG Form 7T
B. LPG Form 7A
C. LPG Form 4
D. LPG Form 7
D. LPG Form 7
Form 7 covers cargo tank registration and renewal; Form 7A is for
container delivery units and Form 7T for transfers.
Page 4 of 60
TEXAS LP-GAS BOBTAIL DRIVER CERTIFICATION |
EXAM QUESTIONS AND CORRECT ANSWERS |
LATEST 2026/2027
RAILROAD COMMISSION OF TEXAS - LP-GAS CERTIFICATION TEXAS LP-
GAS BOBTAIL DRIVER
1. Which state agency is responsible for regulating LP-gas safety in
Texas?
A. The Texas Department of Transportation
B. The Railroad Commission of Texas through its Alternative Fuels
Safety department
C. The Texas Department of Licensing and Regulation
D. The Texas Commission on Environmental Quality
B. The Railroad Commission of Texas through its Alternative Fuels
Safety department
LP-gas activities in Texas fall under the Railroad Commission,
administered by its Alternative Fuels Safety (AFS) department.
Page 1 of 60
, Texas LP-Gas Bobtail Driver
2. The Texas LP-Gas Safety Rules are found in which part of the Texas
Administrative Code?
A. 16 TAC Chapter 3
B. 30 TAC Chapter 106
C. 37 TAC Chapter 4
D. 16 TAC Chapter 9
D. 16 TAC Chapter 9
Title 16, Part 1, Chapter 9 contains the LP-Gas Safety Rules adopted by
the Railroad Commission.
3. Under the Texas LP-Gas Safety Rules, a bobtail driver is an
individual who operates an LP-gas cargo tank motor vehicle in metered
delivery service with a water capacity of no more than:
A. 3,500 gallons
B. 1,000 gallons
C. 10,000 gallons
D. 5,000 gallons
D. 5,000 gallons
The Chapter 9 definition limits a bobtail to 5,000 gallons water capacity
or less in metered delivery service.
4. As defined in the Texas rules, a "transport" is:
A. Only a semitrailer that carries more than 9,000 gallons
B. A railcar used to supply a bulk plant
C. Any vehicle that carries cylinders for exchange
D. Any bobtail or semitrailer equipped with one or more containers
D. Any bobtail or semitrailer equipped with one or more
containers
The rules define a transport broadly as any bobtail or semitrailer fitted
with one or more containers.
Page 2 of 60
, Texas LP-Gas Bobtail Driver
5. A "specification unit" under the Texas rules is an LP-gas transport
constructed to which DOT specification?
A. MC-306 or MC-307
B. MC-330 or MC-331
C. DOT-4BA or DOT-4BW
D. MC-312 or MC-338
B. MC-330 or MC-331
Specification units are transports built to the pressure cargo tank
specifications MC-330 or MC-331.
6. Before a bobtail can be placed into LP-gas service in Texas, the
operator must:
A. Have the manufacturer file the unit with the Commission
B. Register the unit with AFS in the name under which the operator
does business in Texas
C. Register the unit only with the county tax office
D. Obtain a certificate of inspection from the insurance carrier
B. Register the unit with AFS in the name under which the
operator does business in Texas
The operator, not necessarily the owner, must register the transport
with AFS before it is used in LP-gas service.
7. Who is responsible for registering an LP-gas transport with AFS
when the truck is leased from another company?
A. The registered owner of the truck
B. The driver assigned to the truck
C. The company that built the cargo tank
D. The person who operates the transport, regardless of ownership
D. The person who operates the transport, regardless of
ownership
Registration is the duty of the operator regardless of who owns the
transport.
Page 3 of 60
, Texas LP-Gas Bobtail Driver
8. The non-refundable Texas registration fee for each bobtail truck
equipped with LP-gas cargo tanks is:
A. $150
B. $75
C. $270
D. $500
C. $270
The Commission charges $270 per bobtail, semitrailer, or other vehicle
equipped with LP-gas cargo tanks.
9. A person shall not operate an LP-gas transport unit in Texas unless
which item has been properly affixed or AFS has specifically approved
its operation?
A. LPG Form 1
B. LPG Form 16
C. LPG Form 4
D. LPG Form 7T
C. LPG Form 4
The LPG Form 4 decal shows the unit is registered and must be affixed
before operation.
10. Which form is submitted to register or re-register an LP-gas cargo
tank in Texas?
A. LPG Form 7T
B. LPG Form 7A
C. LPG Form 4
D. LPG Form 7
D. LPG Form 7
Form 7 covers cargo tank registration and renewal; Form 7A is for
container delivery units and Form 7T for transfers.
Page 4 of 60
