EV charging regulation has developed differently across markets. For manufacturers operating internationally, that can mean navigating different measurement requirements, technical interpretations and conformity assessment routes.

But the landscape is changing.

OIML G22 established the first international technical guide specifically for EV charging systems, creating a common technical foundation for regulators, manufacturers and testing laboratories. Now, Europe’s amended Measuring Instruments Directive (MID), the development of CENELEC TS 50732 and work on a formal OIML Recommendation are creating an opportunity for much greater alignment.

Why does this matter for EV charging manufacturers?

Greater alignment could make it easier to plan products and conformity assessment strategies across multiple markets. But manufacturers need to understand not only today’s requirements, but also where the regulatory landscape is heading.

In this insight paper, NMi examines the journey from fragmented national approaches towards a more consistent international framework — and what manufacturers should consider as these requirements continue to evolve.

What you'll learn

- Why EV charging measurement requirements became fragmented and how different national approaches emerged.

- What changed with OIML G22 and why it created an important common technical foundation for EV charging measurement.

- How G22 is influencing regulatory development internationally, even where national legislation remains different.

- How the amended MID, TS 50732 and the future OIML Recommendation fit together as complementary European and international developments.

- What greater alignment could mean for manufacturers, including product development, conformity assessment planning and access to multiple markets.

Prepare for where EV charging measurement is heading

National requirements will not disappear. However, the direction of travel points towards greater technical convergence between European and international frameworks.

Understanding that direction early can help manufacturers make more informed product and conformity assessment decisions as TS 50732, the MID framework and the future OIML Recommendation continue to develop.