SEVESO Threshold Calculator by Substance Quantities
Get an indicative check of whether your facility is classified as lower tier or upper tier SEVESO based on the quantity of hazardous substance stored.
How is it calculated?
The SEVESO III Directive (2012/18/EU) classifies establishments storing hazardous substances into two tiers based on quantity thresholds: lower tier (basic notification and prevention policy obligations) and upper tier (full safety report and external emergency plan).
This calculator uses simplified indicative categories. Actual thresholds depend on the exact substance classification under the CLP Regulation and possible aggregation rules across substances. Always consult the official regulation or a specialized technician for the definitive classification.
Learn more in our FAQ on when a company is affected by SEVESO.
Need to manage your SEVESO documentation?
IgeraIndustria indexes your safety report, internal emergency plan and safety data sheets for immediate consultation by your team.