The international standard IEC 62676-4 has existed since 2014 and regulates the application regulations for video security systems (VSS). The BHE Bundesverband Sicherheittechnik eV announces that the 2025 version has been fundamentally revised in order to meet changing safety requirements and technological developments. The standard is regularly adapted to the state of the art and international regulations (IEC/EN) and is intended to create comparable quality standards worldwide. The German version DIN EN 62676-4 is in the works and is scheduled to appear by summer 2026.

Seven pixel densities and a new category for forensics

One of the key changes concerns the pixel density specifications, which have been completely revised and expanded to include practical recommendations. The standard now defines seven pixel densities. The highest category is called “assess” and requires 1,500 pixels per meter – a resolution that, according to the BHE, is comparable to that of a passport photo. This should make it possible to identify an unknown person “with a probability bordering on certainty”. The association states that this category is also accepted by law enforcement image forensic experts.

In addition to manufacturers, installers and specialist planners from the ranks of the BHE, the Swiss security association SES and image forensics experts from law enforcement authorities were also involved in developing the standard. The main project management of the responsible working group TC79/WG12 was Michael Meissner, the chairman of the BHE video specialist committee. Meissner coordinated the drafts in the respective national committees of the IEC member countries and, according to the association, ensured broad international approval.

ISO 31000 security concept and clearer security levels

The revised standard stipulates that a security concept should be developed in the future that brings together structural, electronic and organizational measures – in accordance with the risk management standard ISO 31000. Video security technology should therefore be viewed more as part of a comprehensive security solution instead of being planned in isolation.

The standard defines four selection methods for determining security levels, which are intended to create more transparency, particularly for critical infrastructures (KRITIS) and sensitive industries. In addition, the standard now explicitly takes into account national and European data protection regulations such as the GDPR. As the BHE explains, this primarily concerns the purpose limitation and data processing in the planning and operating process – an aspect that is intended to give operators and planners more legal certainty.

Operation book, maintenance obligations and qualified personnel

The requirements for the ongoing operation of video security systems have also been specified in the new version. In the future, the operation of a VSS system will be based more closely on the applicable standards and guidelines for hazard warning systems (GMA). This applies, among other things, to regular inspections, maintenance, inspections and the qualification of specialist personnel. The standard introduces the term “electrician VSS”. It also requires keeping an operating log for the entire life of a VSS system, in which all operating events such as malfunctions, changes and maintenance must be documented.

Maintenance is also regulated in more detail. According to the association, the standard contains checklists for visual inspections, functional tests and maintenance and makes clear the need for a maintenance contract. Response times for corrective maintenance are set according to the defined safety levels. The term “improvement” was also newly included, which is intended to ensure the reliability and functional safety of the system over its entire service life.

What the standard specifically provides for operators, planners and installers

The new standard is intended to create a uniform planning basis and reduce the communication effort and sources of errors in projects. For operators, the BHE cites, among other things, better forensic usability of video recordings, measurable effectiveness through practical test procedures, legal certainty through the integration of data protection and occupational safety requirements, and investment security through internationally coordinated standards. The association also points to a potentially faster return on investment, for example through higher clearance rates.

Specialist planners and installers should benefit from clearly defined process steps, documented decision-making processes and reduced rework. The standard also opens up new service areas – from risk analysis to project planning and maintenance planning. After publication of the German version, the professional qualification as a “VSS electrician” can be proven through BHE seminars and examinations and can serve as a competitive advantage. In addition, the association says it offers training programs, certifications, technical papers and guidelines for implementing the new standard.