9.1 Introduction

The Control of Substances Hazardous to Health Regulations (the COSHH Regulations) were first introduced in 1988 but have been amended and changed many times since. The present COSHH Regulations came into operation in 2002 but have been subject to subsequent amendments, with the introduction of workplace exposure limits ( Regulation 7) being the most notable change.

They are the principal Regulations affecting the use of hazardous substances, although there are separate Regulations dealing with asbestos and lead. The Regulations follow general principles which can be applied to most occupational health risks.

• Assess the risk What substances are in use, in what ways and to what extent.

• Eliminate the risk If possible, stop using the hazardous substance or replace it by a less hazardous one, e.g. substitute solvent-based paints by water-based ones.

• Provide controls Control at source, e.g. by enclosure or local exhaust ventilation (LEV) is preferable, although it may be necessary to rely on PPE.

• Maintain the controls Control measures, e.g. LEV and PPE must be checked regularly and maintained in good condition.

• Monitor Check on working conditions and working practices regularly. Atmospheric sampling or health surveillance may be necessary.

• Inform employees About the risks from substances they are using, the precautions they should be following, how to use LEV and PPE etc.

Full details of the 2002 Regulations together with an ACOP and guidance are available in an HSE booklet (