Please select the Connecticut license/exam that you are interested in purchasing reference books for.
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Modern Refrigeration and Air Conditioning, 22nd Edition
$236.99View ProductThe Modern Refrigeration and Air Conditioning, 22nd Edition is the HVACR standard for a new generation of learners. It correlates to HVAC Excellence and PAHRA accreditation requirements to ensure complete coverage that prepares students for career success.
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ACCA Ductulator – Duct Calculation Slide Rule
$65.99View ProductOne of our most popular catalog items! This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.
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2018 International Mechanical Code (International Code Council Series) 1st Edition
$142.99View ProductThe 2018 International Mechanical Code (International Code Council Series) 1st Edition establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design.
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2021 International Mechanical Code (International Code Council Series) 1st Edition
$131.99View Product- The 2021 International Mechanical Code (IMC) establishes minimum regulations for the design, installation, and inspection of mechanical systems in buildings. It aims to ensure safety, efficiency, and adaptability in mechanical systems by incorporating prescriptive and performance-related provisions.
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2023 National Electrical Code – NFPA 70
$208.99View Product- The code you—and the world—depend on to keep pace with ever-evolving electrical hazards and challenges.
NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. The NEC is revised every three years to stay in sync with industry practices, emerging trends, and the development and introduction of technologies to provide comprehensive rules for designers, installers, inspectors, engineers, electricians, and anyone else who works in the electrical industry. The code is organized for ease of use.
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NFPA 70 National Electrical Code (NEC) – 2020 Edition
$208.99View ProductThe code you—and the world—depend on to keep pace with ever-evolving electrical hazards and challenges.
NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. The NEC is revised every three years to stay in sync with industry practices, emerging trends, and the development and introduction of technologies to provide comprehensive rules for designers, installers, inspectors, engineers, electricians, and anyone else who works in the electrical industry. The code is organized for ease of use.
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NFPA 31 Standard for the Installation of Oil-burning Equipment 2011 Edition Paperback
$203.99View ProductNFPA 31, Standard for the Installation of Oil-Burning Equipment is the benchmark for the correct installation of boilers, air heaters, and other liquid fuel-burning equipment, and their fuel supplies. Designers, contractors, and installers rely on this Standard for guidance that protects property and building occupants by ensuring a fire-safe installation. Authorities having Jurisdiction (AHJs) and insurance underwriters depend on NFPA 31 requirements to verify the safety of installations in industrial, commercial, and residential occupancies.
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Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
$142.99View ProductThe Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition, from the Air Conditioning Contractors of America (ACCA), details the correct HVAC load calculation procedure for small and midsize commercial buildings. This new edition addresses advances in the commercial construction industry, such as new materials, methods of assembly, and operational requirements. It provides instruction to help contractors and designers satisfy new (and often conflicting) energy, ventilation, and comfort requirements. Manual N is divided into four sections providing both a quick procedure, and a more comprehensive procedure, based on the requirements of your application.
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Ugly’s Electrical References, 2026 Edition
$32.99View ProductUgly’s Electrical References, 2026 Edition is the essential on-the-job reference tool for electrical industry professionals.
The 2026 Edition provides the most pertinent, up-to-date information used by electricians, including updated NEC code and table change information; mathematical formulas; NEMA wiring configurations; conduit bending guide; ampacity and conduit fill information; transformer and control circuit wiring diagrams; and conversion tables.
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Mathematics for Plumbers and Pipefitters 8th Edition
$283.99View ProductNow in its 8th edition, Mathematics for Plumbers and Pipefitters delivers the essential math skills necessary in the plumbing and pipefitting professions.
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2015 International Mechanical Code (International Code Council Series) 1st Edition
$131.99View ProductThe 2015 International Mechanical Code (International Code Council Series) 1st Edition establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC® was developed with broad-based principles that make possible the use of new materials, methods and design.
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2021 International Plumbing Code (International Code Council Series) 1st Edition
$131.99View Product- The 2021 International Plumbing Code (IPC) provides comprehensive regulations for the design, installation, and inspection of plumbing systems in buildings. It aims to safeguard public health, safety, and welfare by ensuring sanitary and efficient plumbing practices.
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Redi-Tag Permanent Tabs – 100 Blank Tabs
$25.99View ProductWhether you are taking an exam or just wanting to be able to quickly reference a topic, tabbing your books is your key. Redi-Tag permanent tabs are self-sticking and you can print on your laser printer in minutes or write directly on them. Made of heavy duty, durable plastic that won’t tear of curl. Input and format text using Windows® versions of Microsoft® Word and WordPerfect®. Actual size of tab 1-1/8″ x 1-1/4″. 100 tabs per pack.
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NFPA 58: Liquefied Petroleum Gas Code, 2014 Edition
$203.99View ProductStay current with the ever-evolving safety criteria for the liquefied petroleum (LP) gas industry.
NFPA 58, Liquefied Petroleum Gas Code, provides the requirements for safeguarding all LP-Gas (propane) installations in homes, businesses, and industrial settings. Important updates to the code help designers, health and safety managers, authorities having jurisdiction (AHJs), and insurance professionals prepare for the challenges of modern LP-Gas hazards.
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2015 International Plumbing Code
$131.99View ProductThe 2015 International Plumbing Code (IPC), developed by the International Code Council (ICC), is a model code that provides comprehensive regulations for the design, installation, and maintenance of plumbing systems. It applies to all types of buildings—residential, commercial, and industrial—and is intended to safeguard public health by ensuring clean water supply and proper waste disposal.
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NFPA 72®: National Fire Alarm and Signaling Code, 2013 Edition
$208.99View ProductGet insights on the latest requirements for the design, installation, inspection, testing, and maintenance of fire alarm and emergency communications systems. The NFPA 72: National Fire Alarm and Signaling Code is the standard that provides requirements that reflect the needs and concerns of code users in the field today. Consult the most advanced and comprehensive requirements ever developed for the application, installation, location, performance, and inspection, testing, and maintenance (ITM) of fire alarm and emergency communications systems, including mass notification systems (MNS), used to protect life and property.
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NFPA 54: National Fuel Gas Code 2012 Edition
$203.99View ProductFrom carbon monoxide poisoning to the risks of fire and explosion, there are several hazards when it comes to using gaseous fuels. NFPA 54/ANSI Z223.1, National Fuel Gas Code, offers the latest comprehensive provisions for the safe design, installation, operation, maintenance, purging, and inspection of gas piping, equipment, accessories, and appliances supplied with fuel gas.
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Connecticut Contractor Guide to Business and Project Management 6th Edition
$129.99View Product- The Connecticut Contractor Guide to Business and Project Management 6th Edition is a comprehensive resource designed to assist contractors in understanding the legal and business aspects of operating in Connecticut. This guide is particularly useful for those preparing for the Connecticut Business and Law Examination.
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Water Processing: Residential, Commercial, Light Industrial
$199.99View ProductThe Water Processing: Residential, Commercial, Light Industrial covers smaller-scale water treatment processes with illustrations, charts, and tables. In addition to basic water treatment technologies, also includes disinfection, aeration, activated carbon and ozonation.
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Connecticut Business and Law Tabs
$14.99View ProductPERMANENT TABS PACKAGE – Includes tabs for all books allowed to be taken into the exam.
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Residential Oil Burners
$252.99View ProductThe Residential Oil Burners serves as a comprehensive reference aimed at technicians and professionals working in residential oil-burning heating systems. It is structured to build foundational knowledge and practical skills by covering the combustion process, the design and operation of oil burners, related heating systems (boilers, hot-water systems, warm-air systems), electrical equipment and controls, and service procedures.
Packed with more need-to-know information than any other book on the market, Residential Oil Burners, 3E provides the knowledge and skills that residential oil burner technicians will need to succeed in the industry. Now in its third edition, the book has been fully updated to incorporate the latest technological advancements, with an all-new chapter on boilers, and updated chapters on electrical equipment and oil burner controls. With coverage of the combustion process, oil burners, heating systems, as well as electrical systems and equipment, users will build a solid foundation of information that is easily transferable to work situations they may encounter in the field. Straightforward and easy-to-use, this book is a valuable addition to every service technician’s vehicle or learning library.
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NFPA 56, Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems 2023
$203.99View ProductNFPA 56, Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems, provides comprehensive requirements to help develop safe operating procedures.
This standard is the industry benchmark for helping safeguard personnel and facilities from risks of fire and explosions during pipe system maintenance. From notifying and training personnel involved in cleaning and purging operations to identifying a safe discharge point and preventing the development of a flammable gas mixture in occupied areas, NFPA 56 provides information and requirements that everyone at your facility can apply to better avoid incidents and help protect lives and property.
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Connecticut Business and Law Online Exam Prep Complete Package
$364.97View ProductThe Connecticut Business and Law Complete Package:
- Connecticut Business and Law Exam Review
- Connecticut Contractors Guide to Business and Project Management
- Connecticut Contractors Guide to Business and Law Permanent Tabs
The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Limited Warm Air, Air Conditioning and Refrigeration (D-2) Online Exam Prep Tab Pack
$89.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Plumbing Design and Installation
$160.99View ProductSample licensing exams are provided to help prepare for typical plumber’s licensing exams. A total of 150 sample licensing exam questions (50 questions in the textbook and 100 questions on the CD-ROM) provide an excellent review of plumbing system design, installation, and maintenance topics.
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Connecticut S-1 Unlimited Heating, Piping, and Cooling Contractor Online Exam Prep Complete Package
$2,798.85View ProductThe Connecticut S-1 Unlimited Heating, Piping, and Cooling Contractor Exam Prep Complete Package includes the following:
- Connecticut S-1 Unlimited Heating, Piping, and Cooling Contractor Exam Prep
- Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
- 2021 International Mechanical Code (International Code Council Series) 1st Edition
- 29 CFR OSHA 1926 Construction Industry Regulations & Standards
- NFPA 31: Standard for the Installation of Oil-Burning Equipment
- NFPA 54: National Fuel Gas Code (2012)
- NFPA 56: Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems (2023)
- NFPA 58: Liquefied Petroleum Gas Code (2014)
- Modern Refrigeration and Air Conditioning
- ACCA Ductulator – Duct Calculation Slide Rule
- HVAC Duct Construction Standards – Metal and Flexible, 4th Edition SMACNA
- Connecticut S-1 Unlimited Heating, Piping, and Cooling Contractor Tab Pack
The following references are being tested on but are not allowed into the exam:
- Modern Hydronic Heating for Residential and Light Commercial Buildings
- Residential Oil Burners, 3rd Edition
- Steam Plant Operation, 10th edition, 2017
The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut S-2 Unlimited Heating, Piping, and Cooling Journeyperson Online Exam Prep Complete Package
View ProductThe Connecticut S-2 Unlimited Heating, Piping, and Cooling Journeyperson Exam Prep Complete Package includes the following:
- Connecticut S-2 Unlimited Heating, Piping, and Cooling Journeyperson Exam Prep
- 2021 International Mechanical Code (International Code Council Series) 1st Edition
- 29 CFR OSHA 1926 Construction Industry Regulations & Standards
- NFPA 31: Standard for the Installation of Oil-Burning Equipment
- NFPA 54: National Fuel Gas Code (2012)
- NFPA 56: Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems (2023)
- NFPA 58: Liquefied Petroleum Gas Code (2014)
- Modern Refrigeration and Air Conditioning
- ACCA Ductulator – Duct Calculation Slide Rule
- HVAC Duct Construction Standards – Metal and Flexible, 4th Edition SMACNA
- Connecticut S-2 Unlimited Heating, Piping, and Cooling Journeyperson Tab Pack
The following references are being tested on but are not allowed into the exam:
- Modern Hydronic Heating for Residential and Light Commercial Buildings
- Residential Oil Burners, 3rd Edition
- Steam Plant Operation, 10th edition, 2017
The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Modern Hydronic Heating, For Residential and Light Commercial 4th Edition
$289.99View ProductAbundantly illustrated with product and installation photos and hundreds of detailed, full-color schematics, this comprehensive text transforms engineering-level design information into practical applications useful for technical students and heating professionals alike. The revised edition features the latest design and installation techniques for residential and light commercial hydronic systems, preparing readers to create systems that deliver the ultimate in comfort, reliability & energy efficiency.
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Steam Plant Operation, 10th Edition
$124.99View ProductFor more than 80 years, Steam Plant Operation has been an unmatched source of information on steam power plants, including design, operation, and maintenance.
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Connecticut HVAC Tab Pack
$32.99View ProductPERMANENT TABS PACKAGE – Includes tabs for all books allowed to be taken into the exam.
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Solar Photovoltaic Systems Installer 2nd Edition
$124.99View ProductThe Solar Photovoltaic Systems Installer 2nd Edition covers the assembly, installation and maintenance of PV systems for a variety of structures. Given the interdisciplinary nature of solar PV installation, this industry-recognized training program incorporates elements of electrical, roofing, construction craft laborer and heavy equipment operations.
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Connecticut Limited Warm Air, Air Conditioning and Refrigeration (D-1) Online Exam Prep Complete Package
$1,877.89View ProductThe Connecticut Limited Warm Air, Air Conditioning and Refrigeration (D-1) Online Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information
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Connecticut Plumbing (P-1, P-2) Tab Pack
$75.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Limited Heating Cooling Journeyperson/Contractor (S-9 and S-10) Tab Pack
$110.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Unlimited Electrical Contractor/Journeyperson License (E-1, E-2) Online Exam Prep Complete Package
$1,388.92View ProductThe Connecticut Unlimited Electrical Contractor/Journeyperson License (E-1, E-2) Exam Prep Complete Package includes all references used during the exam, including tabs for references allowed in the exam and 365 days access to our online course which offers narrated highlighting guides, practice tests, instructor support and test-taking tips and strategies to prepare for the exam. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Limited Heating Cooling License (D-3 and D-4) Online Exam Prep Complete Package
$778.95View ProductThe Connecticut Limited Heating Cooling License (D-3 and D-4) Complete Package includes the following:
- Connecticut Limited Heating Cooling License (D-3, D-4) Exam Prep
- 2021 International Mechanical Code
- 29 CFR OSHA 1926 Construction Industry Regulations & Standards
- Connecticut Limited Heating Cooling Tab Pack
The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. -

Connecticut H1 Home Inspector Tab Pack
$26.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Hearth Gas Products Business and Law Tab Pack
$26.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Limited Warm Air, Air Conditioning and Refrigeration (D-2) Online Exam Prep Complete Package
$1,559.91View ProductThe Connecticut Limited Warm Air, Air Conditioning and Refrigeration (D-2) Online Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information
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Connecticut Limited Journeyperson/Contractor (S-7, S-8) Online Exam Prep Complete Package
View ProductConnecticut Limited Journeyperson/Contractor (S-7, S-8) Online Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Limited Journeyperson/Contractor (S-7, S-8) Tab Pack
$89.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Hearth Gas Products Business and Law Online Exam Prep Complete Package
$530.96View ProductConnecticut Hearth Gas Products Business and Law Online Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Limited Gas and Oil Burner Journeyman/Contractor (B-1, B-2) Exam Prep Tab Pack
$85.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Connecticut Limited Gas and Oil Burner Journeyman/Contractor (B-1, B-2) Online Exam Prep Complete Package
$1,724.91View ProductThe Connecticut Limited Gas and Oil Burner Journeyman/Contractor (B-1, B-2) Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Limited Heating Cooling Journeyperson/Contractor (S-9 and S-10) Online Exam Prep Complete Package
$2,802.85View ProductThe Connecticut Limited Heating Cooling Journeyperson/Contractor (S-10 and S-9) Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Unlimited Plumbing Contractor/Journeyperson License (P-1, P-2) Online Exam Prep Complete Package
$1,838.90View ProductThe Connecticut Unlimited Plumbing Contractor/Journeyperson License (P-1, P-2) Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut H1 Home Inspector License Online Exam Prep Complete Package
$958.94View ProductThe Connecticut Home Inspector License Complete Package includes all references used during the exam and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Connecticut Electrical Tab Pack
$32.99View ProductPERMANENT TABS PACKAGE – Includes tabs for all books allowed to be taken into the exam.




