The Ministry of Science and Technology (MST) has issued Circular No. 41/2025/TT-BKHCN regarding the technical standard for radio access equipment operating in the frequency band 6 GHz. Along with Circular Letter 41/2025/TT-BKHCN, the National Technical Standard for radio access equipment operating in the 6 GHz frequency band has also been issued with number QCVN 136:2025/BKHCN. The Circular No. 41/2025/TT-BKHCN will come into effect on 1 January 2027. Equipment under HS Code 8517.62.51 as stated in Circular Letter No. 29/2025/TT-BKHCN will be subject to this new technical standard.
In this article we will discuss all important notes from the new Circular No. 41/2025/TT-BKHCN and the technical standard of QCVN136:2025/BKHCN for 6 GHz radio access equipment.
Key notes of new Circular No. 41/2025/TT-BKHCN
There are some important notes from the issuance of Circular No. 41/2025/TT-BKHCN. Therefore, here are some important notes to understand:
- The National Technical Standard QCVN 136:2025/BKHCN for 6 GHz Radio Access Equipment was issued as an attachment to Circular Letter No. 41/2025/TT-BKHCN.
- The Circular Letter No. 41/2025/TT-BKHCN is effective from 1 January 2027.
- Equipment with HS code 8517.62.51, as listed in Circular Letter No. 29/2025/TT-BKHCN dated 13 November 2025, will applicable for QCVN 136:2025/BKHCN, replacing QCVN 47:2015/BTTTT, starting from the effective date of Circular Letter No. 41/2025/TT-BKHCN.
- Implementation of Circular Letter No. 41/2025/TT-BKHCN is the responsibility of the Department of Telecommunications, institutions and units under the Ministry of Science and Technology, as well as related organizations and individuals to implement Circular Letter No. 41/2025/TT-BKHCN.
- If difficulties arise during the implementation process, institutions, organizations and individuals must immediately report them in writing to the Ministry of Science and Technology for guidance or consideration of appropriate amendments and additions.
Technical standard of QCVN 136:2025/BKHCN
Technical standard QCVN 136:2025/BKHCN specifies technical requirements and measurement methods for radio access equipment operated in the frequency band 6 GHz, including Wireless Local Area Network (WAS/RLAN) equipment capable of operating in all or part of the specified frequency band. The table below shows the frequency range allocations for the 6 GHz band according to QCVN 136:2025/BKHCN:
| Function | Frequency Range |
| Transmitting | 5945 MHz – 6425 MHz |
| Receiving | 5945 MHz – 6425 MHz |
This standard applies to Vietnamese and foreign companies engaged in the production, business and operation of radio access equipment within the scope of standard QCVN 136:2025/BKHCN in Vietnam.
Impact on the Vietnam Type Approval
Implementation of Circular No. 41/2025/TT-BKHCN for radio access equipment under HS Code 8517.62.51 will require manufacturers, suppliers and importers to comply with the technical standard QCVN 136:2025/BKHCN for radio access equipment operating in the 6 GHz frequency band.
Conformity with the technical standard of QCVN 136:2025/BKHCN will take effect on 1 January 2027. Therefore, starting from 1 January 2027, test reports under the technical standard QCVN 136:2025/BKHCN will be required for Type Approval in Vietnam.
Conclusion
As informed earlier, the implementation of Circular Letter No. 41/2025/TT-BKHCN will impact the process of Type Approval and SDoC in Vietnam. Therefore, it is crucial to prepare for the conformity activities of 6 GHz radio access equipment before the equipment being marketed in Vietnam.
Besides, it is also important for manufacturers, suppliers and importers to stay updated during the transition period towards technical standard QCVN 136:2025/BKHCN. To facilitate this adjustment period, applicants and manufacturers can consult with our expert team. Therefore, feel free to send an email to info@narmadi.com if you have any questions about this new Circular.
