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High-activity sealed sources (HASS)

Find our guidance on HASS in:

England on Business Link: Complying with your environmental permit

Northern Ireland on NIBusinessInfo: Complying with your certificate

Scotland on Business Gateway: Complying with your certificate

Wales on Business.Wales.gov.uk: Complying with your environmental permit

Our guidance has moved to these websites as part of the government programme to centralise online guidance for businesses. Read more about the changes to NetRegs.

High-activity sealed sources (HASS)

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