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ContractorWith over 20 years of experience preparing candidates for the contractor exams for the trade and Business, Law and Management, Contractor School Online (CSO) is your primary resource to help you pass your State Contractor License Exam! We offer online practice tests, study materials, books, CD-ROMs, crash courses and more depending on the state.

To become a certified contractor you must pass a Business and Law exam in many states and,  depending on the classification you need, you may need to pass a trade exam as well. If you are unsure what your classification requires, please use our Information Request Form.

Contractor School Online (CSO) will assist you with their professional consultants and provide study materials, also practice tests for the Business, Law, and Management and your trade if available. If purchases are made elsewhere make sure the correct author, title and year are appropriate for the trade.

CSO Business and Law Practice Test coincides with the required State Contractor?s Manual.

Please note: Inventory Pricing - Contractors State Bonding and Subjects may change without notice.



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License Requirements

Highway Pre qualification:

  • Contractors must submit financial statements for annual pre qualification. Bid limits are based on the working capitol reflected in the statements. The average processing time on applications is two weeks. There were 300 pre qualified contractors as of October 1994.

Fire Alarm:

  • Applicants must pass from one to three examinations depending on the classification with a minimum score of 70%. Licensees must maintain liability insurance in the amount of $100,000 single limit and $300,000 aggregate total.

  • Applications are processed on an average of ten days.

Fire Sprinkler System:

  • Applicants must pass the NICET examination for level III and an agency examination with a minimum score of 70% or be currently registered in Texas as a professional engineer.

Plumbers:

  • Applicants must pass a trade examination with a minimum score of 70% and provide documentation of six years of experience (four years apprentice and two years journeyman).

Air Conditioning & Refrigeration:

  • Applicants must provide evidence of three years of experience within the past five years. The minimum passing score is 70%. General Liability and Products/Completed Operations insurance is required in minimum amounts of $100,000 for Class B licenses and $300,000 for Class A licenses. There were 10,300 contractor licensees as of October 1996.

LP Gas:

  • Applicants must pass an exam. Exams are waived for those who have an air conditioning and refrigeration contractors license or a master plumber license. There were 1,500 Category D licensees in October 1996.

Other:

  • Licensing requirements may exist at the local level for work not regulated by the state. A performance bond is required for public works contracts over $25,000.

Reciprocal Agreements

A/C and refrigeration reciprocity agreement is in effect with Georgia and South Carolina.


License Types

Air Conditioning & Refrigeration:

  • Class A Unlimited (as to size of equipment)
  • Class B Cooling equipment to 25 tons & heating equipment to 1.5 million BTUs
  • Environmental air conditioning endorsement (heating, cooling & ventilation for human comfort)
  • Commercial refrigeration endorsement/Process cooling or heating endorsement

Fire Alarm:

  • Technician
  • Residential Superintendent
  • Residential Superintendent - single station
  • Planning Superintendent
  • Fire Sprinkler System Contractor

Plumbing:

  • Journeyman
  • Master

Fire Sprinkler:

  • Fire Sprinkler System Contractor

LP Gas:

  • Installer

Texas State Contractor Trades, License, Exams and Requirement Information  

Contractor Trades

Master Electrician

Journeyman Electrician

Maintenance Electrician

Master Sign Electrician

Journeyman Sign Electrician

Residential Wireman Electrician

Residential Appliance Installer

Plumbing

HVAC

 

Contact Texas State for the below trades for additional Information

1. Commercial Refrigeration/Process Cooling
2. HVAC and Environmental Air

For languages other than English or Spanish, you may request to have the examination translated by contacting TDLR and paying an additional cost for each translation, or you may bring a bound Word-to-Word translation dictionary. 

Journeyman Electrician License

Requirements - Pre-approval from the state is required to sit for the exam. The state requires applicants to have at least 8,000 (4 years) hours of on the job training under the supervision of a master electrician and pass the journeyman exam.

There are no state minimum financial requirements at this time. Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire.

Scope of Work - Texas Journeyman Electrician License allows the license holder to work under the general supervision of a Master Electrician, on behalf of an electrical contractor, or employing governmental entity while performing electrical work. Electrical work is defined as any labor or material used in installing, maintaining, or extending an electrical wiring system and the apparatus or equipment used in connection with the use of electrical energy in, on, outside, or attached to a building, residence, structure, property, or premises, including service entrance conductors as defined by the National Electrical Code.

Applications - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks. The term of the license is one year.

Reciprocity - Texas has a reciprocal agreement for this license with Arkansas and Washington.

Exam - Open Book 

Total Questions

Passing Score

Time Allowed

80 75%

240 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, Theory and Plans 6

Electrical Services, Service Equipment, and

Separately Derived Systems 9

Electrical Feeders 3

Branch Circuit Calculations and Conductors 15

Electrical Wiring Methods and Electrical

Materials 18

Electrical Equipment and Devices 10

Motors and Generators 5

Electrical Control Devices and Disconnecting

Means 3

Special Occupancies, Equipment and Conditions 9

Renewable Energy Technologies 2  

MASTER ELECTRICIAN

Requirements - Pre-approval from the state IS required to sit for the exam.  The state requires applicants to have at least 12,000 hours (6 years) of on the job training under the supervision of a master electrician and the experience verification form must be completed by a person qualified to verify the electricians training or license history. 

There are no state minimum financial requirements at this time. Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire. Master Electricians are only required to obtain general liability insurance coverage or workers compensation if he is the owner of the Electrical Contractor license.

A person holding a Master Electrician license may only be assigned to a single Electrical Contractor unless the Master Electrician owns more than 50% of the electrical contracting business.

Scope of Work - Master Electrician may perform all electrical work, including electrical work performed by a master sign electrician, may supervise an electrician, may verify compliance with on the job training requirements for the issuance of a master electrician license, a master sign electrician license, a journeyman electrician license, or a journeyman sign electrician license, and may serve as a master on record for an electrical sign contractor.

Applications - are processed in the order in which they are received.  The wait time is typically no more than 2-3 weeks. The term of the license is one year.

 

Reciprocity Texas has a reciprocal agreement for this license with Louisiana.

 

Continuing Education - The state licensing requires completion of 4 hours of approved continuing education during the term of the current license to renew your Master Electrician’s license. The required hours must cover Texas state laws and rules that regulate electricians and the National Electrical Code 2011 (NEC). 

Exam - OPEN BOOK

Total Questions

Passing Score 

Time Allowed

100 75%

300 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, Theory and Plans 12

Electrical Services, Service Equipment, and

Separately Derived Systems 16

Electrical Feeders 4

Branch Circuit, Calculations and Conductors 15

Electrical Wiring Methods and Electrical

Materials 16

Electrical Equipment and Devices 12

Motors and Generators 8

Electrical Control Devices and Disconnecting

Means 3

Special Occupancies, Equipment and Conditions 12

Renewable Energy Technologies 2  

The following reference material is allowed in the examination site: National Electrical Code, 2011 Edition Candidates are responsible for bringing their own references to the examination center. 

JOURNEYMAN SIGN ELECTRICIAN

SCOPE OF WORK COVERED - A Journeyman Sign Electrician is one who works under the general supervision of a Master Electrician or Master Sign Electrician, on behalf of an electrical sign contractor, and installs, maintains, extends, connects or reconnects an electrical wiring system and its appurtenances, apparatus or equipment used in connection with signs, outline lighting, awnings, signals, light emitting diodes, and the repair of existing outdoor electrical discharge lighting, including parking lot pole lighting. Also includes the installation of an electrical service integral to an isolated sign and/or outline lighting installation. 

Total Questions

Passing Score

Time Allowed

80 75%

240 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, Theory and Plans 10

Electrical Services, Service Equipment, and

Separately Derived Systems 8

Electrical Feeders 3

Branch Circuit Calculations and Conductors 10

Electrical Wiring Methods and Electrical

Materials 6

Electrical Equipment and Devices 8

Motors 1

Electrical Control Devices and Disconnecting

Means 3

Electric Signs and Outline lighting 31

 

There are no state minimum financial requirements at this time. Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire. Applicants must obtain pre-approval from the state licensing department before testing.

 

QUALIFICATION REQUIREMENTS - 8,000 hours of on-the-job training under the supervision of a master or master sign electrician.


APPLICATIONS - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks. The term of the license is one year.

RECIPROCITY - Texas has no reciprocal agreement for this license.

CONTINUING EDUCATION - Texas State of Licensing requires completion of 4 hours of approved continuing education during the term of the current license. The required hours must cover the National Electrical Code 2011 and Texas State Electrician Laws and Rules. For late renewal, the continuing education courses must have been completed within the 1 year period immediately prior to the date of renewal.

MAINTENANCE ELECTRICIAN

QUALIFICATIONS - 8,000 hours of on-the-job training under the supervision of a master electrician or a maintenance electrician; passing score on the maintenance electrician examination.  There are no state minimum financial requirements at this time. Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire. Applicants must obtain pre-approval from the state licensing board before testing.

SCOPE OF WORK - Maintenance Electricians work under the general supervision of a Master Electrician, on behalf of an electrical contractor, to replace or repair existing electrical appurtenances, apparatus, equipment, machinery or controls used in connection with the use of electrical energy in, on, outside or attached to a building, residence, structure, property or premises. All replacements or repairs must be of the same rating and type as the existing installation. Electrical maintenance work does not include the installation of any new electrical appurtenances, apparatus, equipment, machinery or controls beyond the scope of any existing electrical installation.

EXAM DETAILS – Open Book

Total Questions

Passing Score

Time Allowed

60 75%

180 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, Theory and Plans 5

Electrical Services, Service Equipment, and

Separately Derived Systems 8

Electrical Feeders 3

Branch Circuit Calculations and Conductors 10

Electrical Wiring Methods and Electrical

Materials 9

Electrical Equipment and Devices 10

Motors and Generators 4

Electrical Control Devices and Disconnecting

Means 3

Special Occupancies, Equipment, and Conditions 8

APPLICATIONS - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks. The term of the license is one year.

RECIPROCITY - Texas has no reciprocal agreement for this license.

CONTINUING EDUCATION - Texas State Licensing Department requires completion of 4 hours of approved continuing education during the term of the current license. The required hours must cover the National Electrical Code 2011 and Texas State Electrician Laws and Rules. For late renewal, the continuing education courses must have been completed within the 1 year period immediately prior to the date of renewal.

Master Sign Electrician

Scope of Work  - One who, on behalf of an electrical sign contractor, installs, maintains, extends, connects or reconnects an electrical wiring system and its appurtenances, apparatus or equipment used in connection with signs, outline lighting, awnings, signals, light emitting diodes, and the repair of existing outdoor electrical discharge lighting, including parking lot pole lighting. Also includes the installation of an electrical service integral to an isolated sign. Electrical Services, Service Equipment, Separately Derived Systems, Definitions, Calculations, Theory and Plans, Electrical Feeders, Branch Circuits, Calculations and Conductors, Electrical Wiring Methods, and Electrical Materials, Electrical Equipment and Devices, Motors and Generators, Electrical Control Devices, Disconnecting Means, and Electric Signs and Outline Lighting.

 

Exam – Open Book

Total Questions

Passing Score

Time Allowed

100 75%

300 Minutes

Applications - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks. The term of the license is one year.

Reciprocity - Texas does not have a reciprocal agreement for this license.

Continuing Education - Texas State of Licensing requires completion of 4 hours of approved continuing education during the term of the current license. The required hours must cover the National Electrical Code 2011 and Texas State Electrician Laws and Rules. For late renewal, the continuing education courses must have been completed within the 1 year period immediately prior to the date of renewal.

RESIDENTIAL APPLIANCE INSTALLER ELECTRICIAN

Scope of Work Covered - Topics covered on the exam are GFCI Protection and Equipment Grounding and Bonding, Definitions, Calculations, Theory and Plans, Electrical Feeders, Branch Circuits, Calculations and Conductors, Electrical Wiring Methods, and Electrical Materials, Electrical Equipment and Devices, Motors, Electrical Control Devices, Disconnecting Means, and Swimming Pool, Spas and Fountain Equipment.

 

EXAM – Open Book

Total Questions

Passing Score

Time Allowed

80 75%

240 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, and Theory 12

GFCI Protection and Equipment Grounding and

Bonding 15

Electrical Wiring Methods and Electrical

Materials 10

Electrical Equipment and Devices 15

Motors 5

Electrical Control Devices and Disconnecting

Means 5

Swimming Pool, Spas and Fountain Equipment 18 

There are no state minimum financial requirements at this time. Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire. Applicants must obtain pre-approval from the state licensing board before testing.

APPLICATIONS - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks. The term of the license is one year.

RECIPROCITY - Texas has no reciprocal agreement for this license.

CONTINUING EDUCATION - Texas State of Licensing currently does not require the completion of continuing education in order to renew this license (may change).

RESIDENTIAL WIREMAN ELECTRICIAN

Scope of Work Covered - Residential Wireman works under the general supervision of a Master Electrician, on behalf of an electrical contractor or employing government entity to perform electrical work that is limited to electrical installations in single-family or multi-family dwellings not exceeding four stories. 

Total Questions

Passing Score

Time Allowed

80 75%

240 Minutes 

CONTENT OUTLINE

Subject Area Number of Items

Definitions, Calculations, Theory and Plans 8

Electrical Services, Service Equipment, and

Separately Derived Systems 16

Electrical Feeders 7

Branch Circuit Calculations and Conductors 14

Electrical Wiring Methods and Electrical

Materials 10

Electrical Equipment and Devices 12

Motors and Generators 2

Electrical Control Devices and Disconnecting

Means 2

Special Occupancies, Equipment, and Conditions 7

Renewable Energy Technologies 2

There is no state minimum financial requirements at this time (may change). Applicants with any criminal offense conviction (felony or misdemeanor) must complete a criminal history questionnaire. Applicants must obtain pre-approval from the state licensing board before testing.

QUALIFICATIONS - 4,000 hours of on-the-job training under the supervision of a master electrician or residential wireman; passing score on the residential wireman examination.

APPLICATIONS - The wait time is typically no more than 2-3 weeks. The term of the license is one year.

RECIPROCITY - Texas has no reciprocal agreement for this license.

CONTINUING EDUCATION - Texas State requires completion of 4 hours of approved continuing education during the term of the current license. The required hours must cover the National Electrical Code 2011 and Texas State electrician Laws and Rules. For late renewal, the continuing education courses must have been completed within the 1 year period immediately prior to the date of renewal.

Texas Journeyman Plumber

Requirements - Pre-approval from the state is required to sit for the exam. Please note a separate Business and Law exam is not needed, that information is incorporated into the trade exam.

The state requires applicants to have proof that applicant is a citizen or national of the United States, or an alien lawfully admitted to the US for permanent residence, or an alien authorized to work lawfully in the US. Applicants are required to have a high school diploma or GED.

Applicants must have a current Texas Plumber’s Apprentice registration, a current Tradesman Plumber-Limited license, or a valid Journeyman or Master Plumber license from another state. Applicants must have at least 8,000 hours of experience working under the direct supervision of a license Plumber and general supervision of a Master Plumber OR have a valid Journeyman or Master Plumber license from another state and at least 8,000 hours of experience working under the general supervision of a Master Plumber. There are no state minimum financial requirements at this time.

At this time the state does not require the Journeyman Plumber to have liability insurance (may change)  Applications are processed when they are received depending on length of time it takes Board to verify all information, but generally they are processed approximately 2-3 weeks from date received.  After passing the exam, it takes approximately 2 weeks to receive the license.

Scope of Work - A Journeyman Plumber is someone who installs, changes, repairs, services, or renovates plumbing, or supervises any of those activities and works under the general supervision of a Master Plumber.

Reciprocity - Texas State Department of Plumbing considers reciprocity on an individual basis. If licensed in another state, the applicant must submit a letter on official letterhead from that state licensing authority stating that the individual has a valid Journeyman or Master Plumber license from that state, including how long that license has been held and whether or not the license is renewable.

Proof of experience must be submitted to the state. Applicants are required to have the same amount of experience as required by an in-state applicant.

Continuing Education - Texas State Plumbing Testing Center requires completion of 6 hours of approved continuing education during the term of the current license for renewal each year. 3 of the 6 hours must cover the subjects of health protection, energy conservation and water conservation.

Exam - Texas Journeyman Plumber exam has 90 questions. The exam is a 3 part test. The 1st part is a written portion. The 2nd part is the sanitary waste and vent portion. The 3rd part is a mechanical “hands on” shop-work portion. The exam is closed book.

Topics covered on the written portion of the exam are knowledge of residential waste and vent systems, natural gas systems, water systems, proper plumbing terms and definitions, cross-connections, back siphoning, backflow, water heaters, and the Plumbing License Law and TX State Rules.

Topics covered on the sanitary waste and vent installation portion of the exam will test the applicant’s knowledge of the proper layout, planning, and installation of, sanitary waste and vent systems. The individual must design the sanitary waste and vent system for a 2 story building including the material “take-off”, order the material, and actually install the system in a reduced scale 2 story building.

Topics covered on the mechanical “hands on” shop-work portion of the exam test the applicant’s knowledge and ability to properly use plumbing tools to assemble, measure, prepare, cut, and install plumbing materials and recognize proper installations of water heaters.

If the exam is failed once, candidates must wait a 30 days training period before retesting. A 60 day waiting period applies if failed twice and 90 days if failed 3 or more times.

HVAC/Commercial Refrigeration/Process Cooling

 

Contractor School Online will assist you for the HVAC trade, but suggest calling the State of Texas for the Refrigeration/Process Cooling trade.

 

The state is the only entity authorized to tell you which test(s) you should take or are qualified to take. Any questions regarding which test(s) to take, contact the state for additional information. Please note a separate Business and Law exam is not needed, that information is incorporated into the trade exam at this (may change)

The state requires applicants to be at least 18 years old and be able to document at least 36 months of hands-on experience within the last 5 years. There are no state minimum financial requirements at this time.

Class (A) contractors are required to obtain and maintain during the license period commercial general liability insurance of at least $300,000 per occurrence (combined for property damage and bodily injury), of at least $600,000 aggregate (total amount the policy pays for property damage and bodily injury), and of at least $ 300,000 aggregate for products and completed operations.

Class (B) contractors are required to obtain and maintain during the license period commercial general liability insurance of at least $100,000 per occurrence (combined for property damage and bodily injury), of at least $200,000 aggregate (total amount the policy pays for property damage and bodily injury), and of at least $100,000 aggregate for products and completed operations.

There are 2 license levels: Class A and Class B

Class (A) License allows the holder to engage in each type of air conditioning and refrigeration contracting that is endorsed on the license in relation to a system, a product, or equipment of any size or capacity.

Class (B) License allows the holder to engage in each type of air conditioning and refrigeration contracting that is endorsed on the license in relation to a system, a product, or equipment of not more than 25 tons cooling capacity or 1.5 million British thermal units per hour output heating capacity.

*NOTE: A holder of a Class B license may design, maintain, install, construct, service, repair, alter, or modify individual units of 25 tons or less of cooling capacity or 1.5 million BTUs per hour or less of heating capacity. In a building or complex of buildings having more than 1 air conditioning or heating unit, the combined cooling capacity may exceed 25 tons and heating capacity may exceed 1.5 million BTUs per hour, as long as each complete individual unit does not exceed the capacities stated above.

Scope of Work - Commercial refrigeration and process cooling or heating endorsement entitles the license holder to engage in air conditioning and refrigeration contracting for commercial refrigeration and process cooling or heating within the class of license held. Air conditioning and refrigeration contracting means performing or offering to perform the design, installation, construction, repair, maintenance, service, or modification of equipment or a commercial refrigeration system, or a process cooling or heating system.

Application - To apply, contact the Texas State Licensing Department.  Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks and the term of the license is one year. Contractor School Online suggest you contact the state to obtain your contractor license for this trade.

Reciprocity - Texas State has a reciprocal agreement for this license with South Carolina and Georgia. If you have a Texas license and want to reciprocate with either state, send a request for a letter of good standing to the Texas State of licensing, or you can contact South Carolina or Georgia for a reciprocal form and license requirements.

If you have a license in South Carolina or Georgia and want to reciprocate with Texas you need to submit a completed Texas license application (form ACR 004), a letter of good standing from South Carolina or Georgia, a copy of your South Carolina or Georgia license, and proof of insurance.

Continuing Education - Texas State of Licensing requires completion of 8 hours of approved continuing education during the term of the current license to renew your ACR license. 2 of the 8 hours must cover Texas laws and rules that regulate air conditioning and refrigeration contractors. The other 6 hours must be courses taken in 1 or more of the following subjects: International Mechanical Code, ethics, business practices, technical requirements, or Texas ACR laws and rules.

Exam - Texas State Commercial Refrigeration/Process Cooling and Heating Class A exam has 120 questions and a time limit of 3 hours. The Class B exam has 100 questions and a time limit of 3 hours.  A score of 70% is required.

Topics covered on the exams are absorption systems, basic refrigeration components, boilers, business and law, combustion air, controls, design responsibility equipment requirements, heat loads, HVAC systems, piping, pressure relief protection,

HVAC and Environmental Air

Contractor School Online will assist candidates for the HVAC trade, but suggest calling the State of Texas for the Environmental Air trade.

 

Pre-approval from the state is required to sit for the exam. The state is the only entity authorized to tell you which test(s) you should take or are qualified to take. Any questions regarding which test(s) to take should be directed to the Board. Please note a separate Business and Law exam is not needed, that information is incorporated into the trade exam.

The state requires applicants to be at least 18 years old and be able to document at least 36 months of hands-on experience within the last 5 years. There are no state minimum financial requirements at this time.

There are 2 license levels: Class A and Class B (Contact State)

Class (A) license allows the holder to engage in each type of air conditioning and refrigeration contracting that is endorsed on the license in relation to a system, a product, or equipment of any size or capacity.

Class (B) license allows the holder to engage in each type of air conditioning and refrigeration contracting that is endorsed on the license in relation to a system, a product, or equipment of not more than 25 tons cooling capacity or 1.5 million British thermal units per hour output heating capacity.

*NOTE: A holder of a Class (B) License may design, maintain, install, construct, service, repair, alter, or modify individual units of 25 tons or less of cooling capacity or 1.5 million BTUs per hour or less of heating capacity. In a building or complex of buildings having more than 1 air conditioning or heating unit, the combined cooling capacity may exceed 25 tons and heating capacity may exceed 1.5 million BTUs per hour, as long as each complete individual unit does not exceed the capacities stated above.

Scope of Work - An environmental air conditioning license entitles the license holder to engage in air conditioning and refrigeration contracting for environmental air conditioning within the class of license held.

Applications - Applications are processed in the order in which they are received. The wait time is typically no more than 2-3 weeks and the term of the license is one year.

Reciprocity - Texas State has a reciprocal agreement for this license with South Carolina and Georgia. If you have a Texas license and want to reciprocate with either state, send a request for a letter of good standing to the Texas State of licensing, or you can contact South Carolina or Georgia for a reciprocal form and license requirements.

If you have a license in South Carolina or Georgia and want to reciprocate with Texas you need to submit a completed Texas license application (form ACR 004), a letter of good standing from South Carolina or Georgia, and a copy of your South Carolina or Georgia license and proof of insurance.

Continuing Education - Texas State of Licensing requires completion of 8 hours of approved continuing education during the term of the current license to renew your ACR license. 2 of the 8 hours must cover Texas laws and rules that regulate air conditioning and refrigeration contractors. The other 6 hours must be courses taken in 1 or more of the following subjects: International Mechanical Code, ethics, business practices, technical requirements, or Texas ACR laws and rules.

Exam - Texas Environmental Air Class (A) exam has 120 questions and a time limit of 3 hours. The Class B exam has 100 questions and a time limit of 3 hours. A score of 70% is required.

Topics covered on the exams are basic refrigeration components, boilers, business and law, combustion air, controls, design responsibility, equipment requirements, heat loads, HVAC systems, piping, pressure relief protection, refrigeration principles, service, testing, ventilation, venting, air properties, air distribution, and exhaust.

***IMPORTANT REFERENCE MATERIAL INFORMATION***

Contact: Contactor Contractor School Online 1-800-966-9596 for the following reference that’s needed for preparation of the exam. Applicants must choose which book(s) to use to study for the exam; EITHER of the following may be used: Plumbing Code, and Fuel Gas Code, OR Uniform Plumbing Code.

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