By law, you must tell us if you store:
- more than 25 tonnes of high nitrogen fertiliser (ie ammonium nitrate) when displaying the oxidising substances symbol
- more than 150 tonnes of ‘relevant ammonium nitrate mixtures’ where the fertiliser nitrogen content exceeds 15.75%
Please note the HSE will be notified on completion of the online form.
You do not need to tell us if:
- the total nitrogen content is less than 15.75%
- the fertiliser does not contain both ammoniacal and nitric nitrogen
Report the storage of dangerous fertilisers
You must display the sign for dangerous fertilisers at all entrances to the site:
You must display the sign for oxidising agents on all doors with access to your buildings:
Read about the Notification and Marking of Sites (NAMOS) regulations on the HSE website.
