WTO notification · TBT
United StatesProposed measure, not in force yet
Official title
Draft Regulatory Guide: Application and Testing of Onsite Emergency Alternating Current Power Sources in Production and Utilization Facilities
The United States notified this proposed TBT measure to the WTO on 3 June 2026. The comment period closed on 2 July 2026.
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Source: WTO ePing (opens in a new tab). Summaries by Expodite, which is independent of the WTO.
Published here:
Emergency alternating current (AC) power source testing; Test conditions and procedures in general; Nuclear power plants. Safety
The comment period closed on 2 July 2026. You can still raise concerns about the measure with your country's WTO TBT enquiry point, quoting the document symbol G/TBT/N/USA/2286; it can take them up with the United States.
Find your country's enquiry point on WTO ePing (opens in a new tab)Draft guide; request for comment - The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment draft regulatory guide (DG), DG-1477, ''Application and Testing of Onsite Emergency Alternating Current Power Sources in Production and Utilization Facilities.'' This DG is proposed Revision 5 of Regulatory Guide (RG) 1.9 with a new title. The proposed revision to the RG provides guidance that the staff of the NRC considers acceptable to comply with the NRC regulations for onsite emergency alternating current (AC) power sources in production and utilization facilities. These power sources include emergency diesel generators (EDGs), combustion turbine generators (CTGs) and other types of onsite emergency AC power sources.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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