ISO 3046-1 specifies the requirements for the declaration of power, fuel consumption, lubricating oil consumption and the test method in addition to the basic requirements defined in ISO 15550.

It defines codes for engine brake power in accordance with ISO 15550, in order, where necessary, to simplify the application of the statements of power and to facilitate communication. This applies, e.g., to statements of power used on engine data plates.

ISO 3046-1 applies to reciprocating internal combustion (RIC) engines for land, rail-traction and marine use and may be applied to engines used to propel road construction and earth-moving machines, industrial trucks as well as for other applications where no suitable International Standard for these engines exists.