2015 NFPA 720 Standard - Current Edition
In purchasing digital access through a PDF or subscription service, you are purchasing a single-user license to access content only by the named account holder. Certain restrictions apply.

NFPA Members save an additional 10%.

Item #: NFPA_720
Price: $0.00
Formats Available:

  • Description

    Manufacture, install, inspect, and maintain CO detection and warning equipment using the 2015 NFPA 720.

    The 2015 edition of NFPA 720, Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment provides updated rules for installation, location, performance, inspection, testing, and maintenance of carbon monoxide detection and warning equipment in all types of structures.

    Changes benefit the public and personnel involved with CO equipment -- from manufacturers to first responders.

    This edition has been revised to make CO equipment more effective and reliable. Everyone from manufacturers to installers, maintainers, inspectors, and emergency personnel needs to know about updates in this edition:

    • New personnel qualifications in Chapter 4 are more specific to CO systems to help ensure personnel are capable of the job.
    • Revised requirements in Chapter 5 and Chapter 9 allow more than one tone for audible CO alarm signals, giving manufacturers greater flexibility.
    • Reformatted inspection and testing tables in Chapter 8 align with NFPA 72®, National Fire Alarm and Signaling Code® to improve usability for inspection and testing professionals.
    • New secondary power supply standby capacity of 24 hours for CO alarms and Household CO Systems provides for a longer period of power outage. This change from 8 hours to 24 hours in Chapter 9 benefits consumers by assuring longer CO alarms operation in emergencies.
    • Revised provisions in Chapter 9 for CO alarms and Household CO Systems addressing distinctive alarm signals clarify that CO, fire, and other alarm signals must use different audible signals.
    • New Annex C Guidelines for Emergency Responders give direct emergency responders access to resources useful during CO events.

    Update your knowledge and be prepared to install equipment that will function as intended to warn people if dangerous CO levels are present. (Print, 83 pp., 2015)


    Interested in other editions of NFPA 720? Use the drop down menu above to select the edition year you need.

  • Table of Contents (2015 Edition)
    NFPA<sup>®</sup> 720 Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment 2015 Edition

    NFPA® 720 Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment, 2015 Edition

    Chapter 1 Administration
    1.1 Scope
    1.2 Purpose
    1.3 Application
    1.4 Equivalency
    1.5 Units of Measure
    Chapter 2 Referenced Publications
    2.1 General
    2.2 NFPA Publications
    2.3 Other Publications
    2.4 References for Extracts in Mandatory Sections
    Chapter 3 Definitions
    3.1 General
    3.2 NFPA Official Definitions
    3.3 General Definitions
    Chapter 4 Fundamentals of Carbon Monoxide Detection Systems
    4.1 Application
    4.2 Purpose
    4.3 Equipment
    4.4 Personnel Qualifications
    4.5 Power Supplies
    4.6 Distinctive Signals
    4.7 Alarm Signals
    4.8 Supervisory Signals
    4.9 Trouble Signals
    4.10 [Carbon Monoxide] Control Function Status Indicators
    4.11 Performance and Limitations
    4.12 Annunciation and Annunciation Zoning
    4.13 Monitoring Integrity
    4.14 Documentation
    Chapter 5 Protected Premises Carbon Monoxide Detection Systems
    5.1 Application
    5.2 General
    5.3 System Features
    5.4 System Performance and Integrity
    5.5 Performance of Initiating Device Circuits (IDCs)
    5.6 Performance of Signaling Line Circuits (SLCs)
    5.7 Performance of Notification Appliance Circuits (NACs)
    5.8 System Requirements
    5.9 Signal Annunciation
    5.10 Off-Premises Signals
    5.11 Protected Premises Carbon Monoxide Control Functions
    5.12 Special Requirements for Low-Power Radio (Wireless) Systems
    Chapter 6 Notification Appliances for Carbon Monoxide Detection Systems
    6.1 Application
    6.2 Purpose
    6.3 General
    6.4 Audible Characteristics
    6.5 Visible Characteristics — Public Mode
    6.6 Visible Characteristics — Private Mode
    6.7 Supplementary Visible Signaling Methods
    6.8 Textual Audible Appliances
    6.9 Textual and Graphical Visible Appliances
    6.10 Tactile Appliances
    6.11 Standard Emergency Service Interface
    Chapter 7 Off-Premises Signal Transmission
    7.1 Application
    7.2 General
    7.3 Prearranged Testing
    7.4 Operation and Record Keeping
    Chapter 8 Inspection, Testing, and Maintenance
    8.1 Application
    8.2 General
    8.3 Inspection
    8.4 Testing
    8.5 Maintenance
    8.6 Records
    8.7 Single- and Multiple-Station Carbon Monoxide Alarms
    8.8 Household Carbon Monoxide Detection Systems
    Chapter 9 Single- and Multiple-Station Alarms and Household Carbon Monoxide Detection Systems
    9.1 Application
    9.2 Purpose
    9.3 Basic Requirements
    9.4 Required Protection
    9.5 Power Supplies
    9.6 Equipment Performance
    9.7 Installation
    9.8 Maintenance and Testing
    9.9 Markings and Instructions
    Annex A Explanatory Material
    Annex B Dangers of Carbon Monoxide
    Annex C Guidelines for Emergency Responders
    Annex D Informational References
  • NFPA PDF Products

    If you purchased a PDF, licensed PDFs can be accessed immediately. Instructions can be found in your order confirmation.

    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.

  • NFPA eForms

    NFPA® makes available PDF versions of some forms originally published in earlier editions of our NFPA Standards and handbooks. These eForms allow you to fill in the form fields electronically and then save, print, or share the file. NFPA eForms are intended for use on computers and are compatible with some mobile devices and apps. An internet connection is not needed to fill in and save the forms once they are downloaded to your device.

    NFPA eForms can be used with many PDF applications. Functions of the specific PDF application will work on the forms. For example, most PDF applications include a signature feature, allowing you to use your finger, stylus, or mouse to sign a document. Note that it is recommended that the eForms be viewed and filled in through Adobe Acrobat Reader or higher, and not using the default reader of your device, for example, the iOS reader on iPhones.

    Note that NFPA eForms are not compatible with the NFPA eLibrary app.

    Features of the NFPA eForms include:

    • Editable fields and checkboxes that allow you to enter content
    • Spell check
    • Easy file sharing (through email or Cloud storage)
    • Printing
    • Basic PDF markup tools, including highlighting and comment boxes
    • A "Learn More" button with explanatory comments to help you understand the requirements necessary to complete the form
    • Electronic signature
    • Searching form text
    • Table of contents with links to each form within the file
    • Dedicated placeholder to add company logo

    Additional features that may be available, depending on PDF software/app you choose:

    • Text message sharing of forms
    • Attaching files to PDF (including audio files)
    • Duplicating forms
    • Advanced tools, including inserting stamps and inserting images
    • Clearing all fields at once
    • Searching extended to include form fields
    • Extracting pages from the full file
    • Save'flattened' option that prevents further editing of content entered into form fields
    • Automatic saving when closing the file
    • Date fields with scroll bar selection

    Directions on how to use on a desktop or mobile device are provided on the first page of the PDF.

  • eForms Table of Contents


    • Carbon Monoxide Detection System Record of Completion
    • Carbon Monoxide System Inspection and Testing
  • 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.