NFC Forum’s WLC and NDEF Specifications Formally Adopted as IEC Global Standards

The NFC Forum announced on March 5, 2026, that two of its specifications have cleared a significant regulatory hurdle. The NFC Wireless Charging (NFC WLC) Specification and the NFC Data Exchange Format (NDEF) Technical Specification have been formally adopted by the International Electrotechnical Commission (IEC) as global standards. They are now published as IEC 63652-1:2026 and IEC 63652-2:2026, respectively.

A look at Near Field Communication (NFC) technology that enables touchless communication between devices. Video used courtesy of NFCForum

What Changed and What Didn’t

The technical content of the two specifications is unchanged. Neither specification required technical changes to be adopted as global standards, reflecting a broad, unanimous international consensus that the specifications are technically precise, openly developed, testable, and governed by a trusted process.

What IEC adoption does change is the level at which these specifications are recognized. The formal recognition elevates the specifications beyond global industry adoption and into formal recognition by governments, supranational organizations, and regulatory bodies, potentially reducing market fragmentation and accelerating time-to-market for products that are already NFC Forum-compliant. This matters particularly in the context of regulations like the EU Common Charging Directive and the incoming EU Digital Product Passport, which reference standardized technologies.

What Is NFC WLC and NDEF?

The NFC WLC Specification standardizes wireless charging for small battery-powered devices using the existing NFC communication interface and is already used by more than 100 million devices on the market, including wireless earbuds, smart glasses, digital stylus pens, headsets, and fitness trackers.

Because a single antenna in an NFC-enabled device can handle both communication and charging, devices can be smaller, lighter, and more affordable. That physical simplicity is a genuine differentiator in the low-power segment. According to NFC Forum, the NFC WLC Specification is the only IEC-recognized standard for small, low-power devices — a distinction that should help product teams navigate an otherwise crowded landscape of wireless charging standards.

NFC WLC enables small battery-powered devices, such as earbuds and smart watches, to be charged wirelessly. Image used courtesy of Adobe Stock

The NDEF Technical Specification defines a common data format for NFC Forum-compliant devices and tags, standardizing the structure, exchange, and interpretation of data records. The two specifications are complementary: used together, WLC and NDEF enable two devices to exchange the information required to safely set up and manage charging before power transfer occurs.

Implications for the Wireless Charging Market

For wireless charging, there is no one-size-fits-all technology. The market requires multiple solutions to meet the unique demands of different devices’ technical parameters, such as product design, maximum charging wattage, and battery size. IEC recognition is expected to clarify where NFC WLC fits within that landscape rather than crown a single winner.

The long-term certainty provided by IEC recognition means that NFC WLC technology will continue to scale, evolve, and be supported globally, reducing investment risk for companies planning globally distributed NFC products with multi-year roadmaps. For engineering teams and product managers, that kind of assurance can be just as important as the technical specifications themselves.

The Road Ahead

There are no additional NFC Forum Specifications currently undergoing review to become IEC standards, though the Forum has committed to liaising with the IEC to ensure that any future updates to the WLC and NDEF Specifications are reflected in the published IEC standards.

For engineers already building products around NFC Forum-certified components, today’s announcement mostly validates choices already made. For those still weighing wireless charging solutions for compact, low-power designs, the IEC 63652 designation gives the NFC WLC Specification a firmer regulatory footing than it had before.