Singapore’s EV charging landscape has entered a new phase. As of April 1, 2026, Technical Reference 25 (TR25:2022) has been elevated to Singapore Standard SS 722, (see Joint Factsheet by the Land Transport Authority (LTA) & Enterprise Singapore) with a broader scope that covers newer charging technologies and updated safety requirements. The shift is designed to support safer and more reliable EV infrastructure as adoption grows, while also accommodating wireless charging, battery swapping, mobile charging systems, and cybersecurity considerations.

For developers, landlords, and project owners, this is not a minor standards update. It changes how EV charging projects are scoped, engineered, documented, approved, and maintained. Sites that were designed around the old assumptions may now need technical reassessment, especially where fire safety, battery handling, or smart-management systems are involved.

TL;DR - SS 722 the new safety standard

• SS 722 replaced TR25 on April 1, 2026, and expands Singapore’s EV charging standard to cover newer technologies and stricter safety expectations.

• The standard now includes requirements linked to wireless charging, battery swapping, mobile charging systems, and cybersecurity for charging management systems.

• Fire safety planning matters more than ever, especially for battery containers, lithium-ion storage, and charging environments in workplaces and carparks.

• Projects that were acceptable under earlier assumptions may now require additional engineering reviews, documentation, or layout changes.

• Developers need Professional Engineers who can anticipate compliance issues before procurement and construction begin.

What changed

The biggest shift is that Singapore’s EV charging framework is no longer just about traditional plug-in chargers. SS 722 expands the standard to support the safe deployment of emerging charging models, including wireless power transfer and mobile charging systems. It also updates design, installation, maintenance, and operation guidance so that infrastructure can scale without compromising safety or reliability.

That expansion matters because each charging model introduces different risk profiles. Wireless charging requires tighter control over alignment, thermal behaviour, and power delivery. Mobile charging introduces operational questions around battery condition, transport, and connection integrity. Battery swapping adds its own layer of handling, testing, and fire risk.

The new standard also reflects a broader reality: EV infrastructure is now part of digital infrastructure. Once chargers are networked, remotely monitored, and integrated into larger site management systems, cybersecurity becomes a safety issue as well as an IT issue. That is why SS 722 includes cybersecurity provisions for management systems, a sign that charging infrastructure is now treated as critical operational technology rather than a standalone electrical asset.

Fire safety implications

From a developer’s point of view, the fire-safety dimension is where compliance risk becomes expensive fastest. Singapore’s fire-safety guidance for workplaces storing and charging large quantities of lithium-ion batteries highlights the need for fire-rated compartments, maximum energy limits per compartment, higher discharge-density sprinklers, and mechanical ventilation to disperse flammable gases.

This has direct implications for EV charging rooms, battery containers, and any project involving mobile charging or battery storage. If the physical layout, compartmentation, ventilation, and suppression strategy are not aligned with the fire code, the project may need to be reworked long after procurement has started. That is the kind of failure that turns a promising asset into a stranded one.

For battery containers in particular, the engineering risk is not just whether the system can operate under normal conditions. It is whether it can be safely isolated, monitored, and extinguished under abnormal thermal events. That means developers need early coordination between electrical design, fire engineering, and operations planning.

Compliance roadmap

A practical SS 722 roadmap should begin before the first charger is specified. The first step is a gap assessment: determine whether the project involves conventional charging only or also wireless, mobile, swapping, or battery-related systems. If the project touches any of the newer categories, the design team should assume higher scrutiny and additional documentation.

Next comes engineering alignment. The site plan must be checked for fire compartments, ventilation, cable routes, load management, emergency shutoff, and system monitoring. This is where in-house Professional Engineers add real value, because they can translate the standard into a buildable and approvable design rather than a theoretical specification.

The third step is approval risk management. Even if a charger was previously acceptable under TR25-based approvals, new installations may still need to comply with SS 722 during the transition period, especially for new technologies. Developers should therefore avoid treating old approvals as blanket protection, and should instead work from a current standard-based compliance matrix.

The final step is operational readiness. Compliance is not only about installation; it is also about maintenance, monitoring, cybersecurity, and incident response. A technically sound system can still fail if the operating team is not trained, access controls are weak, or maintenance protocols are incomplete.

This is where Eigen’s in-house Professional Engineers become strategically important. In a tighter compliance environment, a developer does not just need a contractor who can install equipment; it needs an engineering team that can anticipate what the regulator, fire authority, and insurer will ask before those questions become delays.

The difference is especially important for complex sites such as logistics hubs, mixed-use developments, hospitals, and large carparks. These projects often involve multiple stakeholders, legacy infrastructure, and constrained physical layouts, which means compliance can’t be solved with a standard product sheet. A PE-led approach reduces the chance of redesign, helps preserve project timelines, and increases the probability that the asset reaches commissioning without becoming a compliance casualty.

For investors and asset owners, this is more than a technical nuance. Compliance discipline protects capital. When a project is engineered correctly from day one, it is less likely to be delayed, re-scoped, or written down due to unresolved safety issues. That directly supports bankability and long-term asset performance.

What developers should ask

Developers evaluating an EV charging project under SS 722 should ask a few hard questions.

• Does the design cover the exact charging modality being installed, or is it only suitable for legacy plug-in systems?
• Are fire-safety measures aligned to the battery and charging environment, or are they generic?
• Is the management platform cyber-secure enough for a networked charging estate?

They should also ask whether the engineering team can show a clear compliance trail from concept to commissioning. That includes the right standards mapping, the right fire-safety assumptions, the right maintenance plan, and the right controls around remote access and monitoring. If any of those layers are missing, the project is exposed. In practice, the safest projects will be the ones that are treated as infrastructure systems, not just electrical add-ons. That is where specialist engineering leadership has the greatest impact.

FAQ

Q1: What is SS 722?
SS 722 is Singapore’s updated national standard for EV charging systems, replacing TR25:2022 from April 1, 2026. It expands the scope of the standard to include newer charging technologies and updated safety requirements.

Q2: Do existing TR25-approved chargers need to be re-certified?
Chargers already type-approved under the EV Charging Act based on earlier TR25 standards do not need to be re-certified to the new SS standard. However, new chargers and new deployments must work within the updated compliance framework during the transition period.

Q3: What new technologies does SS 722 cover?
The updated standard includes wireless power transfer, battery swapping, mobile charging systems, and cybersecurity requirements for charging management systems.

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If you are planning an EV charging project, battery container deployment, or site-wide energy upgrade, SS 722 should be addressed at the concept stage, not after procurement. Eigen’s in-house Engineers can help you turn the standard into a practical compliance roadmap, connect with us here: enquiry form

If you'd like to read more about the SS 722: Singapore Elevates National Standard for Electric Vehicle (EV) Charging Systems to Support Safer and More Reliable Charging Infrastructure