Circular No. 51/2025/TT-BKHCN Issuing "National Technical Regulation on Requirements for Time Stamp Service"

Circular No. 51/2025/TT-BKHCN issues National Technical Regulation on Requirements for Time Stamp Service, applicable to organizations providing public digital signature certification services. This document details the information systems and technical management personnel required to be met by April 10, 2027.

Document No.51/2025/TT-BKHCN
Document typeCircular
Issuing authorityMinistry of Science and Technology
Signed byNguyễn Mạnh Hùng — Bộ trưởng
Updated11/06/2026
SectorLabour, War Invalids and Social Affairs
FieldLabourWagesRemuneration
Issued date31/12/2025
Effective date01/07/2026
Expiry date
StatusIn effect
✦ Smart summary

Circular No. 51/2025/TT-BKHCN issues National Technical Regulation on Requirements for Time Stamp Service, applicable to organizations providing public digital signature certification services. This document details the information systems and technical management personnel required to be met by April 10, 2027.

Scope of application

Organizations providing public digital signature certification services

Key points

  • Organizations providing public digital signature certification services must review and upgrade their information systems and technical management personnel teams to comply with the provisions of QCVN 138:2025/BKHCN by April 10, 2027 (Article 2).
  • This Circular takes effect from July 1, 2026, and replaces previous circulars on mandatory standards for digital signatures and digital signature certification services (Article 3).
  • Applications for Time Stamp Service Provision License that have not been granted a license until this Circular comes into force shall continue to apply the provisions of previous circulars (Article 4).
  • The Director of the National Electronic Certification Center is responsible for organizing guidance on the implementation of this Circular (Article 5).
  • Relevant organizations and individuals must be responsible for implementing this Circular.

🌐 Social impact of this document

  • Enhance security and confidentiality in public digital signature certification services.
  • Demand that service-providing organizations invest in upgrading information systems and technical management personnel, causing costs for businesses.

❓ Frequently asked questions

What must organizations providing public digital signature certification services do before April 10, 2027?

They must review and upgrade their information systems and technical management personnel teams to comply with the provisions of QCVN 138:2025/BKHCN.

When does this Circular take effect?

This Circular takes effect from July 1, 2026.

Full text

MINISTRY OF SCIENCE AND TECHNOLOGY

SOCIALIST REPUBLIC OF VIET NAM

Independence - Freedom - Happiness

Number: 51/2025/TT-BKHCN Hanoi, December 31, 2025

CIRCULAR

Issuing "National Technical Regulation on Requirements for Time Stamping Services"

National Technical Regulation on Requirements for Time Stamping Services

Pursuant to the Law on Electronic Transactions No. 20/2023/QH15;

Pursuant to the Law on Standards and Technical Regulations No. 68/2006/QH11, amended and supplemented by Law No. 35/2018/QH14 and Law No. 70/2025/QH15;

Pursuant to the Government Decree No. 23/2025/NĐ-CP dated February 21, 2025, stipulating electronic signatures and trusted services;

Pursuant to Decree No. 127/2007/NĐ-CP dated August 1, 2007 of the Government detailing implementation of certain provisions of the Law on Standards and Technical Regulations, amended and supplemented by Decree No. 78/2018/NĐ-CP;

Pursuant to Decree No. 55/2025/NĐ-CP dated March 2, 2025 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Science and Technology;

At the proposal of the Director of the National Electronic Authentication Center;

The Minister of Science and Technology issues this Circular on issuing the "National Technical Regulation on Requirements for Time Stamping Services".

Article 1. Attached herewith is the National Technical Regulation on Requirements for Time Stamping Services (QCVN 138:2025/BKHCN).

Article 2. Implementation Schedule

Except for organizations providing public key infrastructure (PKI) certification services that choose to apply the provisions of the Electronic Transactions Law No. 20/2023/QH15, other PKI certification service providers currently operating legally shall be responsible for reviewing and upgrading their information systems and human resources management and technical teams to comply with the provisions of QCVN 138:2025/BKHCN before April 10, 2027.

Article 3. Effective Date

1. This Circular takes effect from July 1, 2026.

2. The following provisions cease to be effective from the date this Circular takes effect:

a) Circular No. 06/2015/TT-BTTTT dated March 23, 2015 of the Minister of Information and Communications on the list of mandatory standards applicable to digital signatures and PKI certification services;

b) Circular No. 16/2019/TT-BTTTT dated December 5, 2019 of the Minister of Information and Communications on the list of mandatory standards applicable to digital signatures and PKI certification services under mobile device and remote signing models.

Article 4. Transitional Provisions

Applications for Time Stamping Service Provision Licenses submitted to competent state authorities but not yet granted licenses by the time this Circular takes effect shall continue to apply the provisions of Circular No. 06/2015/TT-BTTTT and Circular No. 16/2019/TT-BTTTT.

Article 5. Implementation

1. The Director of the National Electronic Authentication Center shall be responsible for organizing guidance for the implementation of this Circular.

2. Organizations and individuals concerned shall be responsible for implementing this Circular.

3. During implementation, if any difficulties arise, agencies, organizations, and individuals shall promptly report in writing to the Ministry of Science and Technology (National Public Key Infrastructure Center) for research and appropriate amendments and supplements.

Place of Receipt:
- Prime Minister, Deputy Prime Ministers;

- Ministries, ministerial-level agencies, and government agencies;
- People's Committees of provinces and centrally governed cities;
- Departments of Science and Technology of provinces and centrally governed cities;
- Inspection and Administrative Violation Management Department (Ministry of Justice);
- Gazette, Government Portal;
- Ministry of Science and Technology: Ministers and Deputy Ministers,
units under the Ministry;
- Ministry of Science and Technology Portal;
- To be filed: VT, NEAC.
- File: VT, NEAC.

THE MINISTER

(Signed)

Nguyen Manh Hung

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