Thailand Announces Changes to Its Plug and Socket Requirement

Jan 13, 2020 | Thailand

Thailand’s certification body, TISI, announced on December 21, 2020, changes to the official regulations of  “Particular Requirement” of TIS166-2549 Plugs and Socket-Outlets for Household and Similar Purposes.

The proposed changes were originally scheduled to become effective January 21, 2021, but Tisi proposed a 180-day delay. and it was approved by the government authorities.

Government cabinet decision date: January 5, 2021
Previous effective date: January 21, 2021
New effective date: 180 days from previous effective date (July 20, 2021)

A summary of the proposed TISI /QR Code Marking are below.

1) It must be displayed on plug, and may also be displayed on packaging.
2) Location of TIS mark: For plugs, it shall be in front at pin area or at side.
3) TIS mark size shall be suitable and proportionate to the size of plug, and it shall not be smaller than 3 mm with text height of TIS standard number not less than 1.5 mm.
4) QR code marking shall be displayed as follows: For plugs, it shall be displayed on packaging or attached at the same area with TIS mark and shall not be smaller than 10 mm.
5) Licensee (importer) needs to login into QR code website to create QR code.

The Original announcement of Particular Requirement can be viewed here:

For information on these changes, or any other global regulations that would impact your devices in those global markets, please contact Testing Partners at (862) 243-2329 or email

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