The main aim of the NAMOS Regulations is to ensure that firefighters arriving at an incident are warned there are dangerous substances on the site.
The Dangerous Substances (Notification and Marking of Sites) Regulations 1990 (NAMOS Regulations) require the notification and marking of sites where there is a total quantity of 25 tonnes or more of dangerous substances present at the site. They don’t apply to radioactive substances, Class I explosives, substances in specified aerosol dispensers, or substances that have been buried or deposited in the ground as waste. The NAMOS Regulations are made under the Health and Safety at Work etc Act 1974 (HSW Act).
A ‘dangerous substance’ for the purposes of these regulations, is any substance which is dangerous for conveyance within the meaning of the Classification, Packaging and Labelling of Dangerous Substances Regulations 1984.
