Effective October 3, 2015

Standard Information
Standard Number:
UL 444
Standard Name:
Communication Cables
Standard Edition and Issue Date:
4th Edition Dated July 11, 2008
Date of Revisions:
April 30, 2010
Date of Previous Revisions to Standard:
4th Edition Dated July 17, 2008
Effective Date of New/Revised Requirements

Effective Date (see Schedule below): October 3, 2015

Impact, Overview, Fees and Action Required

Impact Statement: A review of all Listing Reports is necessary to determine which products comply with new/revised requirements and which products will require re-evaluation. NOTE: Effective immediately, this revised standard will be exclusively used for evaluation of new products unless the Applicant requests in writing that current requirements be used along with their understanding that their listings will be withdrawn on Effective Date noted above, unless the product is found to comply with new/revised requirements.

Overview of Changes: The new revision of the standard UL 444 incorporates new requirements for Canada, and adds new requirements for metallic messengers. Specific details of new/revised requirements are found in table below.

Schedule: So that shipping of products with Listing Marks will not be interrupted, an approximate schedule has been established to ensure Listing Reports are found compliant by Effective Date:

  • March 2, 2015 = 7-8 Month Report Review – Intertek will review all Reports. Update if compliance is verified or issue Findings Letter/Quote for any re-evaluations needed
  • April 3, 2015 = 6 Month Quote Cut-off – Quotes returned for necessary re-evaluations
  • September 4, 2015 = 30 Day Warning – Client advised of all non-compliant Reports to be Suspended
  • October 3, 2015 = Effective Date – ATM Suspended for all non-compliant Reports

Fees: An initial review of Listing Report (s) will be covered by a direct billing project and will be invoiced at not more than $1000 per report.

Client Action Required:

Information – To assist our Engineer with review of your Listing Reports, please submit technical information in response to the new/revised paragraphs noted in the attached or explain why these new/revised requirements do not apply to your product (s).

Current Listings Not Active? – Please immediately identify any current Listing Reports or products that are no longer active and should be removed from our records. We will do this at no charge as long as Intertek is notified in writing prior to the review of your reports.

Description of New/Revised Technical Requirements

NOTE: Additions to existing requirements are underlined and deletions are shown lined out below.


Update Remark: Paragraph 5.1.2 was originally excluded from Canadian requirements, however in order to harmonize with the US requirement, the standard will now require paragraph 5.1.2 to apply in both the US and Canada.

In the United States, The centre conductor of CMP, CMR, CMG, CM and CMX coaxial cables made of copper-clad aluminum shall be in accordance with ASTM B566.

In Canada, this requirement does not apply.


Update Remark: Added section 5.12, metallic messengers, which are used to support communication cables.

Metallic messenger

5.12.1 A metallic messenger may be joined to the outermost jacket by the means of a web. The jacket thickness over the messenger and between the messenger and the cable core is not specified, provided that the required jacket thickness over the conductors is not reduced.

CUSTOMERS PLEASE NOTE: This Table and column "Verdict" can be used in determining how your current or future production is or will be in compliance with new/revised requirements.

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