Thailand - Country Commercial Guide
Standards for Trade

Describes standards, identifies the national standards, accreditation bodies, and lists the national testing organization(s) and conformity assessment bodies.

Last published date: 2021-08-16


The main standards-developing organization is the Thai Industrial Standards Institute (TISI) under the Ministry of Industry. TISI is a member of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). TISI also participates in the International Accreditation Forum (IAF) and the International Laboratory Accreditation Cooperation (ILAC). In Southeast Asia, TISI is a member of the ASEAN Consultative Committee for Standards and Quality (ACCSQ). TISI is also a member of the Standards and Conformance Subcommittee (SCSC) under the Asia Pacific Economic Cooperation (APEC) organization and represents Thailand in the Pacific Area Standards Congress (PASC). Thailand follows ISO guidelines to synchronize standards with its trade partners.


TISI develops both mandatory and voluntary Thai Industrial Standards (TISs) to suit the needs and the growth of industry, trade, and economy of the country. TISI publishes a work program every six months with its plan for standards development for Thailand. Thai Standards are developed according to the government policy in consumer protection, industrial promotion to be competitive in the world market, environmental protection, and natural resources preservation. Effective January 21, 2021, Thailand Industrial Standards Institute (TISI) required that manufacturers and/or importers of TISI certified products affix both voluntary and mandatory certification marks by QR Code. Please refer to the National Institute of Standards of Technology (NIST), U.S. Department of Commerce, and its web-based NotifyUS service.

is a free, web-based e-mail registration service that offers an opportunity to review and comment on proposed foreign technical regulations that can affect access to international markets. Member countries of the World Trade Organization (WTO) are required under the Technical Barriers to Trade (TBT) Agreement to report to the WTO all proposed technical regulations that could affect trade with other member countries.

Conformity Assessment

The Office of National Standardization Council (ONSC) of Thailand is part of TISI that is responsible for the impartiality of accreditation activities, including certification bodies, inspection bodies, and laboratory accreditation. Through the process of the Thai accreditation system, the Office of National Standardization Council gives formal recognition that a conformity assessment body is competent to carry out specific functions or tasks according to relevant international requirements. TISI issues product certifications according to established Thai standards and is an accredited body for ISO and Hazard Analysis and Critical Control Points (HACCP) certifications in Thailand.

Testing, Inspection, and Certification

The Government of Thailand requires a compulsory certification of 122 products in ten sectors, including agriculture, civil and construction materials, consumer goods, electrical appliances and accessories, PVC pipe, medical, LPG gas containers, surface coatings, chemical, mechanical engineering, and vehicles. Certification of other products is on a voluntary basis. Industrial products that have TISI certification are generally regarded as having high standards and good quality. Thailand is part of the ASEAN Economic Community, and as such, Mutual Recognition Agreements (MRAs) are effective for compulsory standards of certain electrical products traded between Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam. Eligible products for MRAs must meet the International Electrotechnical Commission (IEC) or its equivalent standards.


Thailand Accreditation is operated under the Standardization Act B.E. 2551 (2008) as one single network that includes the National Bureau of Agricultural Commodity and Food Standards (ACFS), Department of Medical Sciences (DMSc), Department of Science Services (DSS), and Office of the National Standardization Council of Thailand (ONSC).

The Office of National Standardization Council (ONSC) of Thailand is Thailand’s official accreditation body:

Office of National Standardization Council (ONSC) of Thailand

Contact person: Ms. Ratchadatorn Kangvalkai, Expert on Accreditation

Tel: (662) 202-3341


All authorized laboratories are required to be accredited under the scope relevant to such products or products groups by the Thai Laboratory Accreditation Scheme (TLAS), the office of National Standardization Council (ONSC), or a laboratory accreditation body that has been approved by the International Laboratory Accreditation Cooperation (ILAC).

Contact Information

Thai Industrial Standards Institute, Ministry of Industry

Call Center Service: (662) 354-3266, 354-3267


Members of the World Trade Organization (WTO) are required under the Agreement on Technical Barriers to Trade (TBT Agreement) to notify to the WTO of proposed technical regulations and conformity assessment procedures that could affect trade. Notify U.S. ( is a free, web-based e-mail registration service that tracks and makes available for review and comment key information on draft regulations and conformity assessment procedures. Users receive customized e-mail alerts when new notifications are added by selected country or countries and industry sector(s) of interest and can also request full texts of regulations. This service and its associated website are managed and operated by the U.S. WTO TBT Inquiry Point within the National Institute of Standards and Technology, part of the U.S. Department of Commerce.