Frequently Asked Questions

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    Standards PDFs are between 1 and 5 megabytes.

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  • How often does a Standard get revised or updated?

    Each UL Standard is unique, and although most (if not all) Standards do change over time, revisions and updates regarding a particular Standard are based on the needs in insuring public safety and confidence and improving quality.

  • Does Comm 2000 offer a service that will let me know when new documents are issued for a specific UL Standard?

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  • What is Comm 2000's return policy?

    Hardcopy Published Standards and test equipment may be returned within 30 days of purchase. Electronic Standards may be returned within 5 days of purchase. All returns must be pre-approved. All age-dated materials are non-returnable. No credit will be given for a returned item that has been damaged in any way, including printed material that has been smudged or is dirty, has damage to the spiral binding, or signs of it being copied. Returns are subjected to freight charges and a 15% restocking fee. Please note: no returns will be accepted without an authorization number. All returns must be clearly marked on the outside of package.

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  • When I order a Standard (PDF/Web delivery) how will I receive this?
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    Standards Subscription Service: UL offers two subscription services to choose from:

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  • What is the Annual Standards Program Online?
    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.
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