UL 943 - CSA C22.2 No. 144.1, Safety for Ground-Fault Circuit-Interrupters

Effective January 16, 2018

Standard Information
Standard Number:
UL 943 / CSA C22.2 No. 144.1
Standard Name:
Safety for Ground-Fault Circuit-Interrupters
Standard Edition and Issue Date:
5th/ 2nd Edition Issued May 17, 2016
Date of Previous Revisions to Standard:
4th/ 1st Edition Revised June 29, 2012
Effective Date of New/Revised Requirements

Effective Date: January 16, 2018

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requests in writing that current requirements be used along with their understanding that their listings will be withdrawn on Effective Date noted above, unless the product is found to comply with new/revised requirements.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:

  • Yellow load label removal from GFCI receptacles
  • Change to instruction sheet for weather resistant receptacles (WR), and load cables

Specific details of new/revised requirements are found in table below.

If the applicable requirements noted in the table are not described in your report(s), these requirements will need to be confirmed as met and added to your report(s) such as markings, instructions, test results, etc. (as required).

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 – Please immediately identify any current Listing Reports or products that are no longer active and should be removed from our records.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
Annex E Installation Instructions – Configuration Drawings

GFCI type receptacles do not require the use of adhesive yellow load side label (as
previously described in the now removed clause 8.2.2).

Update required for installation instructions as per Annex E section E1 (removal of load
side label references and related illustrations). See Figure 1 below for details.

And to address the need for WR product in damp or wet locations. This includes English,
French, and Spanish translations and markings. See Figure 1 below for details. See
Figure 1 below for details.

Compliance of certified Receptacle type GFCI installation instructions will need to be

(Normative in Canada and the United States; informative in Mexico)
Figure 1 Installation instructions

New – modified portion of Figure 1

– modified portion of Figure 1

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.