Health and Safety Executive

C016:06 02 August 2006

HSC consults on proposals for new workplace exposure limits

On 4 July the Health and Safety Commission (HSC) published a Consultation Document welcoming comments on proposals to introduce new and revised Workplace Exposure Limits (WELs).

Workplace Exposure Limits (WELs) are concentrations of hazardous substances in the air, approved by the Health and Safety Commission (HSC). Employers have a responsibility to ensure that these limits are not exceeded in order to protect the health of workers.

The HSC’s proposals are significant in the implementation of the 2nd Directive on Indicative Occupational Exposure Limit Values (IOELVs) (2006/15/EC), adopted in February by the European Commission.

The directive lists 33 substances with exposure limits, for which Member States must introduce a domestic occupational exposure limit by September 2007. For many of the 33 substances, a comparable Workplace Exposure Limit (WEL) already exists in Great Britain and has been published by the Health and Safety Executive (HSE).

The Consultation document proposes to introduce WELs for 7 substances where one does not currently exist and reduce the limit of the WELs for13 substances. It is proposed that the new and revised WELs will be introduced on 6 April 2007.

Note to Editors

1.Further details of the proposed changes can be found in the Consultative Document [PDF 325kb]. The consultation period will last for 12 weeks, and comments on the proposals should be sent to Steve Mason, Health and Safety Executive, 9SW Rose Court, 2 Southwark Bridge, London SE1 9HS or email steve.mason@hse.gsi.gov.uk to reach him no later than 27 September 2006.

2 WELs have been published by the Health and Safety Executive (HSE) in its publication EH40/2005 Workplace Exposure Limits. The list of current WELs is also available on the HSE website

3.Indicative Occupational Exposure Limit Values (IOELVs) take their legal base from the Chemical Agents Directive (98/24/EC).

5.Separate arrangements are in hand to implement the 2nd IOELV Directive in Northern Ireland and in Gibraltar.

Press enquiries

Barbara Hewitt 020 7717 6903
Out of hours 020 7928 8382

Public enquiries

HSE's InfoLine: 0845 3450055
Caerphilly Business Park, Caerphilly CF83 3GG


Quick links

Ask an expert 0845 345 0055

Health and Safety Executive
Caerphilly Business Park
Caerphilly CF83 3GG

Directgov - Business Link

Updated 11.06.09