2020 NFPA 70, NEC Looseleaf - Current Edition
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  • Description

    The 2017 and 2020 editions of the NEC are available in looseleaf while supplies last. To better meet the shifting interests of our customers, the 2023 edition of the NEC is available in print (spiralbound or softbound), or digitally through a subscription to NFPA LiNK® or NFCSS™.


    Get up to date and compliant with the 2020 NEC in a durable, customizable looseleaf* format.

    In the rapidly evolving and expanding electrical industry, it's critical to have the resources you need to be prepared for the very latest challenges and hazards. Since 1897, NFPA 70®, National Electrical Code® (NEC®), has set the standard for safe residential, commercial, and industrial work across the country and around the world.

    Incorporated by reference in all 50 states, the 2020 NEC offers the most current requirements for safer and more effective electrical design, installation, and inspection, including provisions for wiring, overcurrent protection, grounding, and equipment. The looseleaf edition features a durable, three-ring binder in which you can insert and organize the specific technical information, tables, and other content you need for your project within the relevant sections of the code.

    Be ready for the electrical challenges of tomorrow, today, with access to the cutting-edge requirements of the new NEC.

    NFPA 70, NEC, is continually reviewed and periodically updated to reflect the latest practices, trends, and technologies in the industry. The looseleaf 2020 edition has been enhanced and revised to provide state-of-the-art requirements and information for safe and effective electrical work.

    Significant changes include:

    • New requirements for exterior emergency disconnects of one- and two-family dwellings for improved electrical safety for emergency responders
    • Revisions to service disconnect rules to help protect electrical workers from arc flash hazards
    • Adapted and adjusted requirements for installation practices of new technologies to meet the evolving demand of power over Ethernet
    • Updates to modernize tables currently in use for calculations to reflect improvements in energy efficiency and align with evolving codes
    • Revised requirements for ground-fault protection within marinas and boatyards
    • Introduction of requirements for the safe use of electric vehicles (electric vehicle power export equipment) as a backup or emergency power source for a building or a home
    • Reorganization of Article 310, including new user-friendly numbering for important ampacity tables, and a new definition for cable bundle in Article 725
    • Relocation of surge protection device requirements to new Article 242
    • Revisions to alternative energy systems and electric vehicle requirements to clarify what portions of the PV system are covered by the provisions of Article 690 and the line side and load side connections of interconnected power supply sources, and to clearly distinguish energy storage systems from storage battery systems
    • Reorganization of Article 800 to provide a general set of requirements to apply throughout the Chapter 8 articles
    • Revisions to requirements for communications cables that are also carrying power to communication devices and revisions to the current limit for cables carrying power and data

    The NEC, 2020 edition, introduces significant new requirements for:

    • The residential installation of receptacle outlets serving island and peninsular countertops and for surge protection of services supplying dwelling units
    • Working space for “housekeeping pads” for electrical equipment, the installation of wiring methods in exit enclosures, sizing supply and load conductors used with adjustable-speed drive systems, and AFCI protection of branch circuits in patient sleeping areas in care facilities
    • Calculating the load of electric vehicle supply equipment with variable current settings
    • Worker safety in identifying the source of power for disconnecting means and for egress from spaces containing large electrical equipment
    • Grounding of disconnecting means installed on the supply-side of service disconnecting means
    • Cables installed exposed on ceiling surfaces and sidewalls
    • Special occupancies, special equipment, and special conditions, including installation of splash pads, the use of “Type P” cables in hazardous classified locations, and the reinspection of swimming pools and other bodies of water

    Keep the vital information you need to help protect lives and property at your fingertips!

    This performance-boosting product is essential for busy electrical professionals looking to improve on-the-job safety and proficiency. Order your copy of the looseleaf NEC, 2020 edition. (Looseleaf, 901 pp., 2020)

  • How the NFPA Handbooks Differ from Codes and Standards


    Ever wonder what the difference is between an NFPA® handbook and a code or standard? We’re glad you asked.

    NFPA codes and standards both provide requirements for achieving outcomes. Handbooks take a deeper dive, providing the full text of a code or standard as well as expert commentary and features such as graphics, decision trees, testing procedures, case studies, sample forms and checklists, and other helpful aids to give a better understanding of the reasoning behind the requirements and how to apply them.


    • A code or standard is a framework—a set of rules to follow with a goal to achieve a certain result
    • A handbook is a connector—linking requirements to application by helping you understand the reasoning behind a code or standard

    The simplest way to think about it is that codes and standards list the technical requirements while handbooks explain those requirements to clarify how to apply them.

  • 2017 Description

    Stay up-to-code and organized with the 2017 edition of the NEC® in durable Looseleaf format.

    The 2017 edition of NFPA 70®, National Electrical Code® (NEC) presents the latest comprehensive regulations for electrical wiring, overcurrent protection, grounding, and installation of equipment. Featuring a durable, five-ring binder, this performance-boosting NEC Looseleaf format lets you insert all the extra technical information and other data you need on an electrical project within relevant sections of the Code.

    Hundreds of updates and five all-new articles in the newest NEC pave the way to a safe and efficient electrical future.

    Major additions reflect the continuing growth in renewable power technology. New Code articles address the advancement of privately owned wind and solar power generation and distribution equipment -- including coverage of higher voltage systems that were once only the utilities' domain. The new consumer role is a major factor in energy decentralization, and expanded NEC coverage is vital for designers, engineers, contractors, and AHJs. You'll work with:

    • Large-Scale Photovoltaic (PV) Electric Power Production Facility (New Article 691)
    • Energy Storage Systems (New Article 706)
    • Stand-Alone Systems (New Article 710)
    • Direct Current Microgrids (New Article 712)

    Other NEC revisions protect the public and workers from deadly hazards.

    • New labeling, such as detailed arc flash hazard warning on equipment, helps workers and supervisors assess electrical risks.
    • New minimum space clearances for equipment installation clarify the safeguards needed to protect installers and maintainers.
    • Fixed Resistance and Electrode Industrial Process Heating Equipment (New Article 425) presents needed regulations for industry.
    • Revised provisions for AFCI and GFCI protection improve electrical and fire safety in homes.

    Order your 2017 NEC Looseleaf today for a customized Code!

    NFPA 70, National Electrical Code is the nation's benchmark code for safe electrical installation, and the sturdy 2017 NEC Looseleaf is the right choice for busy electrical professionals who need job information at their fingertips. (Looseleaf, 888 pp., 2017)

  • NFPA PDF Products

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    Effective with the annual 2020 code cycle, NFPA® will no longer offer access to the PDF format as a choice for new editions of codes and standards, handbooks, or other reference titles. Existing PDFs will remain in-market and will still be accessible in our National Fire Codes® Subscription Service (NFCSS™). For more information about the different format options available to access essential code and standard content you need, click here.

  • Historical Editions

    Previous editions of NFPA® documents are available for sale. Please see applicable NFPA codes and standards product pages to confirm which editions are available for purchase. If you have any questions, contact NFPA Customer Support at 1-800-344-3555 or nfpa.org/customerservice.

  • Also in NFPA 70: National Electrical Code (NEC)