Product Glossary

  • Annual Standards Program Online (ASPO)
    ASPO was developed to address the needs of organizations who utilize Standards in high volume ASPO provides secure online access to UL's entire Standards collection* in PDF and HTML format Documents are fully printable and watermarked for security purposes Users are assigned an ID and password and may customize their Standards library to receive updates on the Standards they use most

    Pricing

    The cost for online access to all UL Standards is calculated according to the number of users, and how many different locations require access.

    *This service does not include IEC based UL Standards.

  • Bulletins

    A document associated with a Standard or Outline of Investigation to announce the adoption of new and/or revised requirements or Provide information related to the use of the Standard or Outline.

  • CSDS Proposals

    An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:

    A revision of one or more requirements A revision of requirements amounting to a complete new edition of an existing UL Standared or Outline A draft new Standard or Outline that has not previously been published
  • Historical Material

    Superceded or withdrawn, previously published UL Standards and revised pages, Bulletins, and announcements issued for these Standards; and prior editions of existing UL Standards and revised pages, Bulletins, and announcements issued for the edition. Request must be reviewed and approved by UL. Available only in a hardcopy, printed format.

  • National Differences

    A compilation of the National Differences that have been identified for the specific IEC-based UL Standard. The National Differences represent those requirements that apply in the US. The National Differences for each IEC-based Standard are also contained within the published UL version of the IEC Standard. May not be available for all IEC-based UL Standards.

  • Outlines of Investigation (Outline)

    An Outline of Investigation is a collection of requirements based upon UL's investigations of a few products, and UL's first step toward development of a UL Standard.

  • Practical Application Guidelines (PAG)

    Clarifications of requirements for future applications, and the applicability of requirements under specific circumstances.

  • Published Standards

    A Standard that has cleared UL's Standards development procedures, and has been formally adopted and published as a UL Standard for Safety.

  • Red Line Standards

    This additional document provides the changes in requirements with the added text underlined and the deleted text as strikethrough.

    RedLine documents only apply to a given revision set and are in limited availability.

    UL Red Line Standards are only for sale through a one year premium subscription.

    Learn about Red Line Documents
  • Revisions

    UL Standards for Safety are continuously revised and updated–for example, to keep them abreast of technological advances and of field experience with the product category. Furthermore, because nationally recognized installation and use codes–with which UL Standards are intended to be compatible–are periodically revised to meet changes in the state of the art and conditions of use, UL Standards for Safety must be correspondingly revised. A UL Standard is current only if it incorporates the most recently adopted revisions. Revisions are available in only a hardcopy, printed format.

  • Standards and Outlines of Investigation

    UL's Standards and Outlines of Investigation contain the requirements used to investigate materials, components, products, and systems for determining the eligibility of the material, component, product, or system to use UL's Listing, Classification, or Recognition Mark, or other UL Mark that may be required.

  • Standard - Hardcopy format

    A Published Standard that is provided in a hardcopy, printed format. A Published Standard consists of the current active version of the Standard plus any published revisions, PAGs, CRDs, TGDs and/or Formal Interpretations that have been issued on or before the date the Standard is shipped. NO future revisions or proposals are provided.

  • Standard - PDF format

    An electronic version of a UL Published Standard in Adobe PDF format containing the complete text of the current version of the Published Standard, including all figures, equations, formulas, indexes, supplements, and appendixes. Any published or adopted revisions that have been issued on or before the date the Electronic Standard is shipped are merged into the text of the Standard. Also provided are PDF files for any PAGs, CRDs, TGDs and/or Formal Interpretations that have been issued on or before the date the Standard is purchased. NO future revisions or proposals are provided.

  • Standards Subscription Service

    Provides the current version of the Standard(s) + automatic updates and revisions for a period of 1 year or 3 Years.

    3-Year Basic Subscription

    Includes, as available, for the current active edition:

    Revisions/New Editions Bulletins Practical Application Guidelines (PAG) Formal Interpretation Technical Guidance Document (TGD) Certification Requirement Decision (CRD) National Differences - for IEC-Based Standards CSDS Proposals - including access to UL’s Collaborative Standards Development System

    1-Year Premium Subscription

    Includes, as available, for the current active edition:

    Revisions/New Editions Bulletins Practical Application Guidelines (PAG) Formal Interpretation Technical Guidance Document (TGD) Certification Requirement Decision (CRD) National Differences - for IEC-Based Standards CSDS Proposals - including access to UL’s Collaborative Standards Development System Redlines Documentation Access to HTML Access to UL Smart Docs
  • Test Equipment

    Rain Test Nozzle—used in the simulated rain tests in UL's Standards

    Sharp Edge Tester and Sharp Edge Tester Kit—used to determine if an edge is sharp enough to cause a cut-type injury

    UL Articulate Probe—used to evaluate the accessibility of live parts or moving parts through openings in an enclosure

    IEC Flexible Test Finger—used to evaluate the accessibility of live parts or moving parts through openings in an enclosure

  • UL Certification Requirement Decision (CRD)

    UL Certification Requirement Decision (CRD) is prepared and published by Underwriters Laboratories (UL). It is normative for the applicable UL Product Certification Program(s)

  • UL Formal Interpretations

    UL Formal Interpretations are Official Interpretations of an ANSI/UL Standard can only be made by UL. Interpretations are not appealable.

  • UL Technical Guidance Document (TGD)

    A reference document that provides assistance in understanding the application of requirements contained in the corresponding UL Standard and addressing the use and applications of the respective products covered by the associated UL Standard(s), or both.

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