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Published on 28 May 2025

Fertilisers

Fertilisers are subject to homologation. The Federal Office for Agriculture (FOAG) is responsible for the homologation of fertilisers.

A hand places fertiliser granules on the ground, a bean seed germinates.

At a glance

The purpose of fertilisers is to supply plants and fungi with nutrients or to improve their ability to take up nutrients. They promote the growth of plants, increase their yield and improve their quality.

The Ordinance on Placing Fertilisers on the Market (Fertilisers Ordinance, DüV) lists the products that are considered fertilisers in the law. Carbon dioxide, water and light are not classed as fertilisers. Fertilisers are subject to homologation so that any unacceptable side effects for humans, animals and the environment can be established.

The FOAG is responsible for the homologation of fertilisers. This involves considering applications for authorisation and, if approved, issuing authorisations so that fertilisers can be imported and placed on the market.

Homologation of fertilisers

A distinction is made in the homologation of fertilisers between those subject to registration and those subject to authorisation:

Product register for chemicals (RPC)

Various product groups can be entered in the Product register for chemicals (RPC). For fertilisers, this involves registering a product, applying for authorisation and submitting applications for renewals and changes in accordance with the Fertiliser Ordinance. Furthermore, reporting of products required by the Chemicals Ordinance (ChemO) can made here.

Record in the Product register for chemicals (RPC)

Companies must register fertilisers in the Product register for chemicals (RPC). In the case of fertilisers subject to authorisation, the data entered is checked by the FOAG before it is published in the RPC. In the case of fertilisers subject to registration, responsibility for the quality, accuracy and completeness of the data entered in the RPC lies entirely with the company.

In certain cases, reporting of a fertiliser must be given in accordance with the Chemicals Ordinance (ChemO), for example if it contains a hazardous substance (see Obligation to report preparations of the Common Notification Authority for Chemicals). Reporting can be made at the time of registration or when applying for authorisation.

Labelling and advertising

The requirements of the Fertiliser Ordinance (DüV) Articles 31, 32 and 33 and Annex 3 apply to the labelling and advertising of fertilisers. A guide to the labelling of fertilisers can be found under Documents and for PFC 1–7 you can refer to the EU guidelines, which can be downloaded from the following link: EUR-Lex (europa.eu)

Further information

The FOAG provides a reduced English-language version of its website that does not include all further information such as documents, legislation or links. These can be found on the pages in the three official languages (German, French and Italian).

Contact for questions

Federal Office for Agriculture FOAG
Agri-Environmental Systems and Nutrients Division
Schwarzenburgstrasse 165
Switzerland - 3003 Bern