SDoC · Class A

NBTC Certification for RFID Devices

RFID (Radio Frequency Identification) devices require NBTC certification before import or sale in Thailand. The certification path depends on both the frequency band and the transmit power of your product — your product may qualify for SDoC or may require Class A registration.

Which Band Does Your Product Use?

RFID devices operate across multiple frequency bands, and NBTC treats each band separately. Products operating across more than one band must meet the requirements for each band individually. However, only a single NBTC application is required: NBTC will issue one certificate covering all applicable bands, with the certification class determined by the highest applicable class.

LF Band — Up to 135 kHz

RFID LF band certification requirements
Application	Frequency Band	Transmit Power	Max Power	Certification
RFID	≤ 135 kHz	≤ 150 mW eirp	150 mW eirp	SDoC
RFID	≤ 135 kHz	> 150 mW eirp	7,500 mW eirp	Class A

HF Band — 13.553–13.567 MHz

This band covers HF RFID operation and includes NFC technology operating at 13.56 MHz.

RFID HF band certification requirements
Application	Frequency Band	Transmit Power	Max Power	Certification
RFID	13.553–13.567 MHz	≤ 10 mW eirp	10 mW eirp	SDoC
RFID	13.553–13.567 MHz	> 10 mW eirp	1,000 mW eirp	Class A

UHF Band — 433 MHz (433.05–434.79 MHz)

RFID UHF 433 MHz band certification requirements
Application	Frequency Band	Max Power	Certification
RFID	433.05–434.79 MHz	10 mW eirp	SDoC

No power split. All RFID devices in the 433 MHz band qualify for SDoC.

UHF Band — 920 MHz (920–925 MHz)

RFID UHF 920 MHz band certification requirements
Application	Frequency Band	Transmit Power	Max Power	Certification
RFID	920–925 MHz	≤ 50 mW eirp	50 mW eirp	SDoC
RFID	920–925 MHz	> 50 mW eirp	4,000 mW eirp	Class A

The 920–925 MHz band is also used by Non-RFID IoT devices under a separate NBTC application. If your product uses LPWAN protocols such as LoRa, see the IoT Device page.

Microwave Bands — 2.4 GHz and 5 GHz

RFID microwave band certification requirements
Application	Frequency Band	Max Power	Certification
RFID	2400–2500 MHz	100 mW eirp	SDoC
RFID	5150–5350 MHz	200 mW eirp	SDoC
RFID	5470–5725 MHz	1,000 mW eirp	SDoC
RFID	5725–5850 MHz	1,000 mW eirp	SDoC

No power split for any of these bands. All RFID devices in the 2.4 GHz and 5 GHz bands qualify for SDoC regardless of transmit power. All governed by NBTC TS 1010-2560.

Required Documents

For SDoC submissions:

Technical specification or datasheet including wireless communication details
Product photos
Test reports (RF, Safety, EMF/SAR as applicable) from accredited laboratories
Authorised declaration

For Class A submissions (additional requirement):

ISO/IEC 17025 accreditation certificate and laboratory scope

No physical product sample submission is required.

Indicative Timeline

SDoCApproximately 1 week from submission

Class AApproximately 5 weeks from submission

Additional time may be required if NBTC requests supplementary documents during review.

Ready to certify your RFID product for Thailand?

RFID certification involves band-specific and power-specific requirements. Zergo assesses your product's parameters and manages the correct certification path on your behalf.

See our NBTC Certification Service →