Vehicles, boats, and internal combustion engines are subject to limits and measurement test methods concerning their radio interference characteristics aimed at protecting off-board receivers.

This standard describes limits and procedures for measuring radio interference in the frequency range of 150 kHz to 5 925 MHz. It is applicable to any electronic or electrical component intended for use in vehicles, boats, internal combustion engines, trailers, devices, and appliances.

However, this standard does not cover the protection of electronic control systems from radio frequency (RF) emissions or transient or pulse-type voltage fluctuations, as these matters are addressed in other ISO standards.

The purpose of this standard is to define test methods used by vehicle manufacturers and suppliers to aid in the design of vehicles and components and to ensure controlled levels of embedded radio frequency emissions. The emission requirements outlined in this standard are not intended for intentional transmissions from a radio transmitter, as defined by the International Telecommunication Union, including spurious emissions.