Certification Introduction

Thai electrical and electronic product certification is managed by the Thai Industrial Standards Institute (TISI) and is divided into two categories: mandatory and voluntary. Products listed in the mandatory certification catalog must obtain certification before they can be imported and sold. Products not included in the catalog can voluntarily apply for certification to enhance market competitiveness. Products with wireless functions such as Wi-Fi and Bluetooth need to additionally obtain certification from Thailand's National Broadcasting and Telecommunications Commission (NBTC) in addition to TISI certification.

Laws and Regulations

The core regulatory basis is Thailand Industrial Product Standards Act. TISI dynamically updates the mandatory product certification catalog. Starting from October 2025, 6 additional categories of electrical and electronic products including hot and cold water dispensers and hair care appliances have been included in the mandatory scope. The specific catalog shall be subject to the latest official information released by TISI.

Technical Requirements

Most technical standards are equivalent to IEC international standards. Electrical safety testing follows the IEC 60335 series, electromagnetic compatibility follows the IEC 61000 series, and products such as air conditioners and refrigerators need to comply with the energy efficiency standard TIS 2134. The rated parameter requirement is 220V/50Hz, and plugs must comply with the TIS 166 standard. The product label must contain information such as the TISI mark, certificate number, and rated parameters, and the core content must be marked in Thai. Testing must be carried out in TISI-accredited laboratories within Thailand. Existing CB/IEC reports can only be used as reference, and additional tests for differences against Thai national standards are required.

Certification Process

Confirm whether the product falls within the mandatory certification scope, determine the corresponding TIS standard number, and prepare technical documents such as circuit diagrams, BOMs, and Thai instruction manuals.

Designate a locally registered legal entity in Thailand as the legal representative, and the local representative submits the application to TISI.

Send samples to a TISI-accredited laboratory to complete the required test items.

Applications for long-term type certification require an on-site factory audit by TISI, while single-batch certification is exempt from factory audit.

TISI reviews all documents, test reports and factory audit reports, and issues a certification certificate with a 3-year validity period after approval.

After obtaining the certificate, affix the TISI mark as required to clear customs and launch the product on the market. Annual supervision audits are required during the validity period of the certificate.

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