Thailand’s TISI (Thailand Industrial Standards Institute) has introduced new mandatory certification regulations and standard upgrades effective in 2025, primarily targeting the household appliance and electrical product sectors.
These updates include:
✅ Newly added product categories now requiring TISI certification
✅ Revised safety, performance, and energy efficiency standards
✅ Updated timelines and testing requirements for compliance

Here’s a breakdown of what manufacturers and exporters should pay close attention to in 2025:
Products like hot/cold water dispensers and distribution boards have been added to the mandatory certification list.
Effective Date: October 1, 2025
From this date, these products must obtain TISI certification before being marketed or sold in Thailand.
Action: Begin your application and testing process immediately to avoid import delays.
Several existing TISI standards have been revised to enhance safety, efficiency, and reliability.
For example:
Room Air Conditioners now follow the updated standard TIS 2134-2565 (2022), emphasizing higher energy efficiency and new test procedures.
Action: Review your product design and test reports to ensure compliance with the latest version.
Completing TISI certification requires testing + factory audit, typically taking 8–12 weeks.
Tip: Plan your application schedule carefully to ensure certification completion before the mandatory effective date.
Delays may result in shipment holds or sales restrictions in Thailand.
If you’re new to TISI certification, here’s how the process typically works:
1️⃣ Application & Testing
Submit your application to TISI or a recognized certification body. Send 2–3 samples to a TISI-accredited laboratory for testing.
2️⃣ Factory Inspection
TISI officials or their designated representatives conduct an on-site audit of the factory’s quality management system (QMS).
3️⃣ Certification & Marking
Upon approval, you’ll receive the official TISI Certificate. Products must display the TISI mark, which includes:
TIS standard number
Unique certification number
4️⃣ Post-Market Surveillance
During the certificate’s 3-year validity period, annual audits and product sampling may be conducted.
Failure to pass surveillance can lead to certificate suspension or withdrawal.
All foreign manufacturers must appoint a Thai-registered company as the local representative (certificate holder).
Without this, the application cannot be submitted to TISI.
Technical documents must be in English or Thai.
User manuals and product labels must contain Thai language information.
Non-compliance may cause delays during document review.
TISI is strengthening post-market surveillance and digital verification under its e-TISI system, making real-time compliance monitoring more efficient.
Start Early: Begin your application 3–6 months before the effective date of new standards.
Leverage Existing Reports: CB Test Reports may be used to reduce redundant testing.
Ensure Thai Documentation: Have professional Thai translations for labels and manuals.
Work with an Experienced Consultant: A trusted certification partner can reduce approval time and avoid rework.
Q1: When do the new TISI regulations take effect?
A1: The first batch of new mandatory categories, such as water dispensers and distribution boards, takes effect on October 1, 2025.
Q2: Can I use existing CB Reports for TISI applications?
A2: Yes, partially. CB Reports can reduce testing time, but Thai national difference tests are still required.
Q3: How long does it take to complete TISI certification?
A3: On average, 8–12 weeks, depending on testing complexity and factory audit readiness.
Q4: Is local representation mandatory for foreign manufacturers?
A4: ✅ Yes. Only a Thai-registered company can act as your certificate holder.
Q5: What happens if my product is not certified?
A5: Selling uncertified products in Thailand may result in fines up to 500,000 THB (~USD 13,900) or product confiscation.
Confirm if your product is affected by the 2025 updates
Review and comply with the latest TIS standards
Prepare your documents and local representation early
Manage timelines proactively to meet effective dates
By understanding these new regulations and acting early, you can enter the Thai market smoothly and maintain long-term compliance with TISI’s evolving requirements.
BLUEASIA Certification Consulting
ASEAN Certification Experts — TISI (Thailand), SIRIM (Malaysia), SNI (Indonesia), IMDA (Singapore)
Email: king.guo@cblueasia.com
Phone: +86 13534225140
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