Effective vehicle access protection requires more than selecting a barrier described as “impact tested”: the applicable test standard and the design of the complete protection scheme both matter. ISO 22343-1:2023 replaced the withdrawn IWA 14-1, while ISO 22343-2:2023 addresses selection, installation, and use. In Germany, DIN SPEC 91414 adds important requirements for portable barriers and systematic access protection planning.
Which standards now form the foundation of professional vehicle access protection?
Anyone specifying vehicle security barriers for an industrial site, corporate campus, public event, downtown district, or other exposed access route quickly encounters several standards and rating systems. ISO 22343, DIN ISO 22343, DIN SPEC 91414, IWA 14, PAS 68, and manufacturer test reports may all appear in the same procurement documents.
That overlap has a historical explanation, but it can create problems when an old specification is reused without checking whether the standards it references are still current.
The international reference is now the ISO 22343 series published by the International Organization for Standardization, ISO (https://www.iso.org/). Part 1 covers performance requirements, the vehicle impact test method, and performance rating. Part 2 addresses application, including guidance on selecting, installing, and using vehicle security barriers and developing operational requirements.
German projects have an additional standards layer. ISO 22343-1:2023 and ISO 22343-2:2023 were adopted into the German standards system as DIN ISO 22343-1:2025-04 and DIN ISO 22343-2:2025-04. DIN Media currently lists both as current standards. At the same time, DIN SPEC 91414-1:2021-04 and DIN SPEC 91414-2:2022-11 remain current technical documents. DIN, the German Institute for Standardization (https://www.din.de/), also launched projects for DIN 91414-1 and DIN 91414-2 in April 2026.
For owners, security planners, municipalities, event operators, and specialized contractors, the distinction matters. An impact test standard establishes how a particular barrier performs under specified test conditions. It does not determine where every barrier should be located, how an emergency access point should operate, or whether the overall protected area can be bypassed.
A planning standard has the opposite limitation: it can provide a methodology for building the protection concept, but it does not replace the performance evidence for the individual barrier system.
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Why should IWA 14-1 no longer be specified as the current standard?
IWA 14-1:2013 was widely used internationally for vehicle security barrier impact testing. ISO now formally lists the document as withdrawn and identifies ISO 22343-1:2023 as the new version. IWA 14-2:2013 is likewise withdrawn and has been replaced by ISO 22343-2:2023.
For new tenders, engineering specifications, and procurement packages, this means that a generic requirement stating only “tested to IWA 14-1” should no longer be copied forward without review. Current standards should provide the starting point.
However, withdrawal of a standard does not automatically invalidate every barrier previously tested under it. Legacy test reports may still contain useful technical evidence, particularly for installed systems, existing inventories, or products that were legitimately tested when IWA 14-1 was current.
The United Kingdom’s National Protective Security Authority, NPSA (https://www.npsa.gov.uk/), provides a useful example. Its current hostile vehicle mitigation material identifies ISO 22343-1 as the present impact-test standard while its security equipment information can still include products tested to earlier impact standards.
The practical lesson is not to discard legacy evidence automatically. Instead, determine whether the test vehicle, impact condition, barrier configuration, penetration behavior, installation arrangement, and current threat scenario remain relevant to the project.
This distinction is especially important in procurement. A specification that indiscriminately lists ISO 22343-1, IWA 14-1, PAS 68, and several national requirements can appear rigorous while actually making the required performance harder to understand.
What does ISO 22343-1 actually test?
ISO 22343-1 is primarily a performance and vehicle impact testing standard for vehicle security barriers. It provides a method for assessing a specific barrier when subjected to a defined vehicle impact and establishes a performance rating based on the test results.
The assessment considers a combination of factors rather than a single marketing value. Vehicle type, vehicle mass, impact speed, barrier arrangement, penetration behavior, and the test environment all contribute to the meaning of a rating. The standard applies to test methods involving vehicle penetration distances of no more than 25 meters.
For a specifier, the important point is that “impact tested” is not a complete performance requirement. The actual rating and the conditions under which it was achieved must be understood.
A common procurement mistake is to compare two barriers primarily by product name or by the maximum speed printed in a brochure. That can conceal major differences between the tested setups. A barrier tested in one configuration should not automatically be assumed to provide identical performance when the number of units, spacing, foundation, anchorage, deployment direction, or surface conditions are changed.
ISO 22343-1 also defines boundaries around what the impact test demonstrates. Its scope does not automatically cover slow-speed encroachment, repeated low-speed nudging or ramming, blast effects, ballistic impact, manual attack using tools, electrical manipulation, or attacks against control systems.
That limitation is important for real hostile vehicle mitigation. A system may have excellent high-speed impact performance while a different attack method creates a separate vulnerability. The threat assessment therefore determines what additional performance evidence, operational measures, or complementary protection may be needed.
How does ISO 22343-2 change the focus from testing to application?
ISO 22343-2:2023 moves the discussion from the test facility to the operational site. It provides guidance for the selection, installation, and use of vehicle security barriers and describes a process for establishing operational requirements.
Germany adopted the document as DIN ISO 22343-2:2025-04, which DIN Media (https://www.dinmedia.de/) currently lists as a current standard. The intended users include site owners and specifiers responsible for barriers protecting people at public or private locations.
The underlying principle is straightforward: define what the system must accomplish before choosing the hardware.
For an industrial facility, that can mean identifying which roads provide a viable vehicle approach, what vehicle types regularly enter the premises, which entrances are used by logistics operations, where emergency responders need access, and which portions of the perimeter contain people or critical operations.
An event creates a different operating model. The same access point may need to remain open during setup, close shortly before admission, reopen temporarily for authorized vehicles, and remain available to emergency services throughout the event. A barrier may be technically capable of meeting the impact requirement yet operationally unsuitable if it is difficult to move, requires unavailable equipment, or depends on procedures that cannot be reliably staffed.
This is one reason operational requirements should be treated as part of the engineering process rather than as an administrative document produced after the barrier has already been purchased.
What role does DIN SPEC 91414 play in German vehicle access protection?
DIN SPEC 91414 covers two related but distinct areas.
DIN SPEC 91414-1:2021-04 establishes requirements, test methods, and performance criteria for portable vehicle security barriers. It was developed specifically for portable systems intended to protect locations or protected zones as part of an overall vehicle access protection concept. DIN Media continues to list the document as current.
DIN SPEC 91414-2:2022-11 addresses a different level of the problem. It defines requirements for planning vehicle access protection using tested vehicle security barriers and explicitly incorporates compatibility with the surrounding urban environment.
That planning perspective is significant because a vehicle barrier project rarely exists in isolation. Traffic routing, pedestrian movement, emergency access, utilities below grade, drainage, public-space design, delivery traffic, accessibility requirements, event logistics, and day-to-day operations may all influence the same protection point.
Germany’s Police Crime Prevention organization, Polizeiliche Kriminalprävention der Länder und des Bundes (https://www.polizei-beratung.de/), applies a similar risk-based approach in its guidance on protecting public spaces from vehicle attacks. It structures the planning process around hazard assessment, protection objectives, the protected zone, protection planning, and selection of appropriate systems. It also stresses the importance of considering vehicle approaches and achievable attack speeds.
For German mid-market organizations, DIN SPEC 91414-2 is therefore particularly useful when a project involves more than simply replacing one existing barrier with another. It helps frame the protection system as a planning task rather than a product purchase.
How do ISO 22343 and DIN SPEC 91414 compare?
| Standard or specification | Primary focus | Typical use | What it does not replace by itself |
| ISO 22343-1:2023 / DIN ISO 22343-1:2025-04 | Vehicle impact testing and performance rating | Technical performance evidence for a VSB | Threat assessment and complete access protection design |
| ISO 22343-2:2023 / DIN ISO 22343-2:2025-04 | Selection, installation, use, and operational requirements | Translating operational needs into barrier requirements | Full site-specific German planning methodology |
| DIN SPEC 91414-1:2021-04 | Portable vehicle security barriers | Testing and rating portable systems in the German context | Complete protected-zone design |
| DIN SPEC 91414-2:2022-11 | Vehicle access protection planning | Risk assessment, protection objectives, planning process, and urban compatibility | Product impact testing |
| IWA 14-1 and IWA 14-2 | Earlier international documents | Interpreting legacy tests and existing systems | Current standards reference for new projects |
The comparison shows why treating the question as “ISO versus DIN” is misleading. A complex project can legitimately rely on several documents because they address different levels of the same problem. Product performance and protection planning are complementary, not interchangeable.
What usually goes wrong when vehicle security barriers are put into practice?
Many poor vehicle protection projects start with a reasonable product and the wrong sequence of decisions.
A facility manager sees a portable barrier at a trade show. A municipality receives a proposal for automatic bollards. An event organizer copies a solution used by a neighboring city. The product becomes the starting point, and only afterward does the organization ask whether it fits the local threat and operating conditions.
The sequence should be reversed.
The first questions concern the hazard, protection objective, credible threat vehicle, approach routes, acceleration opportunities, protection points, protected zone, bypass routes, and operational constraints. Only after those issues have been established should a specific tested barrier be matched to the requirement.
A second recurring problem is assuming that a valid test automatically validates any installation. It does not. A manufacturer may provide legitimate impact-test evidence even though the proposed field deployment differs substantially from the tested arrangement.
This issue becomes especially important with temporary and portable systems. The NPSA specifically warns that a rating applies to the configuration or arrangement that was actually tested and that differences between the rated setup and the proposed deployment need to be understood and reviewed.
A third failure point is the operational gate. On drawings, an active barrier can complete the protective line perfectly. During actual operations, that same location may remain open repeatedly for delivery vehicles, contractors, emergency responders, event production teams, hotel guests, or municipal vehicles.
If authorization procedures, staffing, opening sequences, supervision, and emergency operation have not been designed with the physical system, the access point can become the weakest part of the scheme.
The surrounding environment is another frequent source of late redesign. A downtown square, hotel entrance, corporate headquarters, or premium retail area cannot be treated solely as a hardened perimeter. DIN SPEC 91414-2 explicitly includes compatibility with the urban environment because security infrastructure also changes pedestrian movement, public-space usability, visibility, and the appearance of the site.
Integrating security, landscape design, civil engineering, traffic planning, and operations early usually produces a better result than attempting to disguise an already selected barrier at the end of the project.
Why is an impact speed by itself not enough to specify a barrier?
Vehicle barrier marketing often emphasizes one number: impact speed. That number matters, but it is not a complete specification.
The load imposed on a barrier depends on the vehicle and the impact scenario. Vehicle mass, vehicle category, approach geometry, barrier arrangement, substrate, anchorage, and the actual tested configuration all contribute to the result.
International HVM guidance illustrates the range of conditions that may be considered. NPSA material cites vehicle impact test examples at 48 km/h, 64 km/h, and 80 km/h. The objective is not automatically to choose the largest number. The real engineering question is what speed a credible threat vehicle can achieve at the particular access point and which test evidence corresponds to that threat.
This is why vehicle dynamics and site geometry are integral to hostile vehicle mitigation. A straight, unobstructed approach presents a different challenge from a narrow route with bends, offsets, traffic islands, or other speed-reducing geometry.
Reducing achievable approach speed can also reduce the performance demand placed on the final barrier. Germany’s Police Crime Prevention guidance specifically notes that physical design of vehicle approaches can reduce attack speed and therefore reduce the resistance required from the protective barrier itself.
A well-designed project therefore does not ask only, “How strong is the bollard?” It also asks, “How much energy can a vehicle realistically bring to this exact point?”
How should a mid-sized company structure procurement?
A mid-sized manufacturer, logistics company, business campus, hotel operator, venue, or infrastructure provider should avoid beginning with a catalog of bollards or portable blockers.
The first deliverable should be a defined protection requirement. Which areas contain people or operations that need protection? Which vehicle routes provide direct access? Which authorized vehicles still need entry? Which entrances must remain operational? Which threat scenario is being considered? How much disruption can the business tolerate?
The next stage is spatial and operational planning. Vehicle approaches, protection points, possible bypasses, pedestrian routes, fire department access, emergency egress, daily logistics, and barrier locations need to be evaluated together.
Stationary systems add civil-engineering considerations such as foundations, underground utilities, drainage, power, controls, and integration with access-control systems. Portable systems create a different set of requirements: storage, transportation, handling equipment, setup time, deployment procedures, staff training, inspection, and confirmation that the installed formation matches the rated configuration.
Only after those issues are understood should the technical procurement package define the necessary impact performance and documentation.
A robust specification should therefore request more than “certified bollards.” It should identify the protection objective, applicable rating, required operating model, installation assumptions, and documentation that bidders must provide.
This approach also improves commercial comparability. Without a defined requirement, several reputable suppliers may propose technically excellent but fundamentally different solutions, making price comparisons almost meaningless.
What does the changing standards landscape in 2026 mean for ongoing projects?
The standards environment is continuing to evolve. The core principles of risk-based vehicle access protection remain stable, but the references used in long-running design and procurement programs need periodic review.
DIN has listed projects for DIN 91414-1 and DIN 91414-2 since April 2026. At the same time, DIN Media continues to list DIN SPEC 91414-1 and DIN SPEC 91414-2 as current technical documents. Organizations preparing projects with long design or tender periods should therefore verify the applicable edition again before issuing final procurement documents.
International standardization is also moving further into the planning domain. ISO/TC 292 currently lists ISO 22343-3 as an ongoing project dealing with access-control planning requirements associated with the deployment of tested vehicle security barriers.
That development is noteworthy because it points toward a broader international treatment of the protection scheme rather than focusing only on individual barrier performance.
There is also a 2026 draft amendment relating to ISO 22343-1. Germany published the corresponding draft as DIN ISO 22343-1/A1:2026-05. Because this remains a draft amendment rather than a finalized replacement for the current standard, procurement teams should distinguish carefully between published requirements and documents still moving through the standards process.
For multi-year projects, the practical response is straightforward: record the standards baseline used at each major design and procurement stage and perform a standards check before tender release, contract award, and significant redesign.
Which standards should a procurement specification actually reference?
A good specification does not become stronger simply by listing more standards.
For vehicle impact performance, DIN ISO 22343-1 or ISO 22343-1 may provide the relevant current reference. DIN ISO 22343-2 or ISO 22343-2 can support selection, installation, and operational requirements. For portable systems and German access protection planning, the relevant parts of DIN SPEC 91414 should also be reviewed.
Project-specific requirements may come from property owners, permitting authorities, police, fire departments, event organizers, insurers, or security consultants. Those requirements should be integrated rather than treated as separate checklists.
Standards compliance alone does not determine who may open an active barrier, how an emergency vehicle gains access, what happens during a power or control-system failure, or how an attack route around the barrier is prevented.
Tender documentation should therefore request the actual performance report, tested configuration, installation requirements, operating documentation, maintenance information, and identification of material differences between the tested arrangement and the proposed site installation.
That level of documentation is particularly valuable when multiple bidders offer systems based on different engineering principles. The comparison then becomes one of demonstrated suitability for the defined requirement, not simply product branding.
Why does the complete vehicle access protection scheme matter more than the individual product?
Vehicle access protection is ultimately a system involving space, traffic, physical security, and operations.
A highly rated vehicle security barrier cannot protect a site if a drivable gap remains beside it. A heavy fixed bollard provides little benefit if the adjacent active gate is routinely left open. An impact-rated system may create a new operational problem if it blocks emergency access or interferes with evacuation. A well-designed protection point can lose its intended performance if field installation differs materially from the tested configuration.
This is why ISO 22343 and DIN SPEC 91414 should not be treated as competing standards families.
The ISO 22343 series establishes important international principles for performance testing and application. DIN SPEC 91414 adds valuable German requirements for portable systems and structured access-protection planning, including the relationship between physical security and the surrounding public environment.
For owners and procurement teams, the most important question is therefore not which standard number appears most prominently on a product brochure. The more useful question is whether the threat assessment, protection objective, vehicle dynamics, tested barrier performance, site configuration, operating model, and residual risk form one consistent protection concept.
That is the point at which a collection of individual barriers becomes an engineered vehicle access protection system.
Sources for the numerical values used
Vehicle penetration distance of up to 25 m:
ISO – ISO 22343-1:2023, Security and resilience — Vehicle security barriers — Part 1
https://www.iso.org/standard/50080.html
Example vehicle impact test speeds of 48 km/h, 64 km/h, and 80 km/h:
National Protective Security Authority / NaCTSO – Considerations for Temporary Vehicle Security Barriers
https://www.protectuk.police.uk/sites/default/files/2025-02/Considerations%20for%20Temporary%20Vehicle%20Security%20Barriers%20v3.pdf
Further reading
German Police Crime Prevention: Protecting public spaces from vehicle attacks
https://www.polizei-beratung.de/themen-und-tipps/staedtebau/schutz-vor-ueberfahrtaten/
DIN: Standard for improved safety in public spaces
https://www.din.de/de/din-und-seine-partner/presse/mitteilungen/standard-fuer-mehr-sicherheit-auf-oeffentlichen-plaetzen-882392
ISO/TC 292: Current projects in protective security
https://committee.iso.org/sites/tc292/home/projects.html
Frequently asked questions
Is IWA 14-1:2013 still a current standard for vehicle security barriers?
No. ISO now identifies IWA 14-1:2013 as withdrawn and lists ISO 22343-1:2023 as its replacement. Older IWA 14-1 test reports may still provide relevant technical evidence for existing products or installations. For new specifications, however, the current standards framework should be used and any legacy rating should be reviewed against the actual project requirements.
What is the difference between ISO 22343-1 and ISO 22343-2?
ISO 22343-1 focuses on vehicle impact performance, the test method, and the resulting performance rating. ISO 22343-2 addresses application, including barrier selection, installation, use, and development of operational requirements. A real vehicle access protection project may therefore rely on both documents because one addresses tested performance while the other supports application and specification.
What is DIN ISO 22343-1:2025-04?
DIN ISO 22343-1:2025-04 is Germany’s adoption of ISO 22343-1:2023. DIN Media currently lists it as a current German standard. It addresses vehicle security barrier performance requirements, vehicle impact testing, and performance rating. For German procurement and engineering documentation, it provides a current national reference corresponding to the international ISO vehicle impact test standard.
Does ISO 22343 make DIN SPEC 91414 unnecessary?
No. The documents address different parts of the problem. DIN SPEC 91414-1 focuses particularly on portable vehicle security barriers, while DIN SPEC 91414-2 addresses access protection planning. ISO 22343-1 focuses on impact testing and performance rating, and ISO 22343-2 provides application guidance. Depending on the project, these documents can complement each other rather than compete.
Does an existing barrier tested to IWA 14-1 have to be replaced?
Withdrawal of IWA 14-1 does not, by itself, mean that every existing barrier tested under it must be replaced. The important questions are whether the original performance evidence, installed configuration, current protection objective, and current threat remain compatible. Safety-critical legacy installations should therefore be reviewed rather than automatically accepted or automatically removed solely because the reference standard changed.
Is a successful vehicle impact test enough for an access protection scheme?
No. An impact test demonstrates how a particular barrier performed under specified test conditions. The overall protection scheme must also address threat scenarios, protection objectives, vehicle approaches, bypass opportunities, emergency access, pedestrian movement, operations, and the protected zone. An excellent barrier does not compensate for an unprotected route that allows a vehicle to avoid the barrier entirely.
Why does the tested configuration of a vehicle barrier matter?
A vehicle security barrier rating relates to a specific tested setup. If a portable system is later installed with different spacing, fewer units, another orientation, or a materially different arrangement, actual performance may change. Owners should compare the test report, manufacturer installation requirements, and proposed field deployment and obtain professional review of meaningful deviations before relying on the original rating.
Why does urban compatibility matter in vehicle access protection?
Vehicle access protection is often installed in public squares, pedestrian districts, event spaces, hotel entrances, or prominent corporate environments. Security infrastructure therefore affects circulation, appearance, accessibility, and how people experience a space. DIN SPEC 91414-2 explicitly incorporates urban compatibility, encouraging security planning, traffic design, and spatial design to be addressed together rather than treating appearance as a late cosmetic issue.
What is ISO 22343-3?
ISO 22343-3 is currently under development. ISO/TC 292 lists the project within protective security and describes it as addressing access-control planning requirements connected with the deployment of tested vehicle security barriers. Because it remains an ongoing standards project, organizations should not treat it as though it were already a final published international standard.
Who is responsible for selecting the appropriate vehicle security barrier?
Responsibility cannot reasonably be shifted to the manufacturer or supplier alone. Risk owners, security planners, site operators, and relevant authorities need to ensure that the threat, protection objective, tested performance, site arrangement, and operating procedures are compatible. Product certificates and impact-test reports are essential evidence, but they do not replace professional planning or the risk owner’s decision regarding residual risk.
