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D-4 Limited Heating-Cooling Journeyperson (2024-07-24)

The holder of this license may perform only work limited to the installation, repair, replacement, maintenance or alteration of all refrigeration systems included in food storage, air conditioning and special process systems and only while in the employ of a contractor licensed for such work. The requirements to qualify for this license examination shall be the completion of a registered apprenticeship program or equivalent experience and training.

40 Questions
70% Minimum Passing Score
90 Minutes Time Allowed

The reference material listed below was used to prepare the questions for this examination.  The examination may also contain questions based on trade knowledge or general industry practices. Except for Code books, you can base your answers on later editions of references as they become available.  For Code questions, the examinations will be based only on the edition of the Code book that is listed.

These products apply to test outline dated 2024-07-24

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Open Book These books are allowed while taking your test.
Closed Book These books are for pre-test study only and are not available for use during the test.
In Stock These books are currently in stock.
Out of Stock These books are currently out of stock.
  • International Mechanical Code Turbo Tabs 2021
    Open Book In Stock

    International Mechanical Code Turbo Tabs 2021

    $15.63

    Flip through the 2021 IMC and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.

    Loose Leaf Tabs Contain: Full-page inserts tabs that have the key code sections printed on them in an easy-to-read format.

    Soft Cover Tabs Contain: Clear plastic, self-adhesive tabs that have the key sections of the code printed on them in an easy-to-read format.

  • International Mechanical Code 2021
    Open Book In Stock

    International Mechanical Code 2021

    $100.00

    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.

    Important changes in the edition include:

    Clothes dryer exhaust terminals required to be at least 3 feet from any opening into a building.
    Polyurethane spray-applied foam on the exterior of ducts in attics and crawl spaces required to meet specific smoke and flame index limits.
    Fire and smoke dampers must be provided with approved access for inspection and maintenance.
    Refrigerant tables updated to include new refrigerants.
    Addition of condensate termination identification markings and discharge restrictions.
    Approved factory-built combination intake/exhaust terminations permitted, relaxing separation requirement.
    30% reduction in minimum mechanical ventilation for whole-house balanced ventilation systems.
    Continuous operation requirement for manicure and pedicure station exhaust systems.
    Grease duct horizontal cleanout required within 3 feet of a horizontal discharge fan.

  • Modern Refrigeration and Air Conditioning 22nd Edition
    Open Book In Stock

    Modern Refrigeration and Air Conditioning 22nd Edition

    $190.00

     Modern Refrigeration and Air Conditioning bridges the gap between students and technicians, maintaining a high standard of quality in covering both fundamental principles and the latest technologies. This esteemed resource boasts a fresh instructional design that effectively combines theory, skill development, and service techniques to equip students with the knowledge needed to install and service refrigeration and HVAC systems. With the most current technical content, a logical and progressive structure, rich learning pedagogy, superior visuals, readability, and a focus on career and workplace readiness, it is ideal for today’s learners.

    Enhanced instructor and student resources include over 100 new lab activities, new HVACR videos, and a Virtual Toolbox. The content aligns with HVAC Excellence and ACCE (formerly PAHRA) accreditation requirements, ensuring comprehensive coverage to prepare students for successful careers.

    The new edition features updated and expanded coverage of heat pumps, A2L refrigerants, and the seasonal energy efficiency ratio 2 (SEER2). Over 200 labs offer hands-on practice on topics ranging from basic residential service tasks to commercial troubleshooting. The robust digital package includes Follow-the-Heat™ animations, troubleshooting activities, new HVACR videos and animations, a new HVACR Virtual Toolbox, an image library, and more.

  • Code of Federal Regulations, 29 CFR Part 1926 (OSHA) 2026
    Open Book In Stock

    Code of Federal Regulations, 29 CFR Part 1926 (OSHA) 2026

    Publication Year: 2026

    $37.00

    Our OSHA 29 CFR 1926 Construction Regulations book gives you quick, easy access to essential safety guidance whenever you need it. It helps employers and workers identify hazards fast and stay compliant on any jobsite. The 2026 edition features a clear two-color layout, includes all 1926 regulations along with key 1903, 1904, and select 1910 rules, and highlights any regulation changes between editions. Icons make it simple to find OSHA interpretations, and the book also includes OSHA Form 300, the Cancer Policy, and In-Cite references to 1910 standards. Frequently cited standards are placed before their related subparts for even easier navigation.