BAS EN 16942:2025 lays down harmonized identifiers for marketed liquid and gaseous fuels. The requirements of this document are to complement the informational needs of users regarding the compatibility between the fuels and the vehicles placed on the market.

The identifier is intended to be visualized at dispensers and refuelling points, on vehicles, in motor vehicle dealerships, and in consumer manuals, as described in  this document.

Marketed fuels include, for example:

·         petroleum-derived fuels,

·         synthetic fuels,

·         biofuels,

·         natural gas,

·         LPG (liquefied petroleum gas),

·         hydrogen and biogas,

·         and blends of the aforementioned delivered to mobile applications.

This new edition also introduces specific labelling of petrol fuels intended for small internal combustion engines, namely:

·         2S – petrol fuels for small two-stroke internal combustion engines;

·         4S – petrol fuels for small four-stroke internal combustion engines.

The graphical expression of identifiers must comply with the following requirements:

a) to provide relevant, consistent and clear information as regards to those motor vehicles that can regularly fuelled with compatible fuels available on the market;
b) to be simple and easy to understand;
c) to be able to be placed in clearly visible manner:

1.    on the corresponding fuel pumps and their nozzles at refuelling points,

2.    on or in the immediate proximity of fuel tanks' filler caps for vehicles, recommended and compatible with that fuel and in motor vehicle manuals.

BAS EN 16942:2025 also contains National Annexes, which define specific national requirements for identifiers for liquid and gaseous fuels sold in the territory of Bosnia and Herzegovina.