The Occupational Safety and Health (Classification, Packaging and Labelling) Regulations 1997 and the Manual of Chemical Health Risk Assessment 2000 helps employers to assess whether there is any significant exposure of the chemicals to the worker and further medical surveillance is necessary.

The Occupational Safety and Health (Use and Standards of Exposure of Chemicals Hazardous to Health) Regulations 2000 is another attempt to further enhance the safe and healthy use of chemicals.

Under this Regulations health surveillance is necessary for chemicals hazardous to health as stipulated in the regulations. Medical surveillance carried out under the USECHH Regulations must be conducted by an Occupational Health Doctor (OHD).