and high-frequency wireless services. While the 2002 version is now considered a deleted publication, the 2021 edition is the current global standard for protecting on-board receivers from electromagnetic interference. IEC Webstore Key Technical Evolution: 2002 vs. 2021

However, the 2002 version had imperfections. It struggled with reproducibility. If Lab A tested a part and Lab B tested the same part, they might get different results due to subtle variations in the setup—the ground plane, the harness length, or the table material. This lack of correlation is the nightmare of the EMC engineer.

This is where the search query gets interesting. There is no official "CISPR 25 2002, 2021 Edition." The user searching for this is likely looking for one of two things:

If you're looking to download the CISPR 25:2002 PDF, you can try the following options:

Before we address the download confusion, let’s establish why this standard matters. CISPR 25 is the international standard titled "Vehicles, boats and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of on-board receivers."

is the definitive international standard for protecting on-board radio receivers from electromagnetic interference (EMI) generated by a vehicle’s own electrical systems and components. Since its inception in 1995, it has evolved from covering basic AM/FM radio to managing the complex electromagnetic environments of modern electric and autonomous vehicles. Com-Power Corporation Comparative Overview: 2002 vs. 2021 Editions