Dangerous Substances and Explosive Atmospheres Regulations 2002

The Dangerous Substances and Explosive Atmospheres Regulations 2002 (SI 2002/2776), or DSEAR, is the United Kingdom's implementation of the European Union-wide ATEX directive.

Dangerous Substances and Explosive Atmospheres Regulations 2002

Statutory Instrument
Parliament of the United Kingdom
Citation	SI 2002/2776
Text of the Dangerous Substances and Explosive Atmospheres Regulations 2002 as in force today (including any amendments) within the United Kingdom, from legislation.gov.uk.

The intention of the Regulations is to reduce the risk of a fatality or serious injury resulting from a "dangerous substance" igniting and potentially exploding. Examples of a "dangerous substance", as defined by DSEAR, include sawdust, ethanol vapours, and hydrogen gas. The regulation is enforceable by the HSE or local authorities.

From June 2015, DSEAR incorporated changes in the EU Chemical Agents Directive and now also covers gases under pressure and substances that are corrosive to metals.^[1]

See also

• Health and safety regulations in the United Kingdom
• Area classification
• Electrical equipment in hazardous areas
• Equipment and protective systems intended for use in potentially explosive atmospheres
• Intrinsic safety
• HSEQ