19.12.2009 Official Journal of the European Union L 33887 COMMISSION DIRECTIVE 2009/161/EU of 17 December 2009 establishing a third list of indicative occupational exposure limit values in implementation of Council Directive 98/24/EC and amending Commission Directive 2000/39/EC (Text with EEA relevance) THE EUROPEAN COMMISSION, Having regard to the Treaty on European Union and to the Treaty on the Functioning of the European Union, Having regard to Council Directive 98/24/EC of 7 April 1998 on the protection of the health and safety of workers from the risks related to chemical agents at work ('), and in particular Article 3(2) thereof, Having regard to the opinion of the Advisory Committee on Safety and Health at Work, Whereas: () ) Pursuant to Directive 98/24/EC, the Commission is to propose European objectives in the form of indicative occupational exposure limit values (IOELVs) for the protection of workers from chemical risks, to be set at Community level. In carrying out this task, the Commission is assisted by the Scientific Committee for Occupational Exposure Limits to Chemical Agents (SCOEL) set up by Commission Decision 95/320/EC (3). IOELVs are health-based, non-binding values, derived from the most recent scientific data available and taking into account the availability of measurement tech- niques. They set threshold levels of exposure below which, in general, no detrimental effects are expected for any given substance after short-term or daily exposure over a working life time. They constitute European objectives to assist employers in determining and assessing risks, in accordance with Article 4 of Directive 98/24/EC. For any chemical agent for which an IOELV is established at Community level, Member States are required to establish a national occupational exposure limit value taking into account the Community limit value, but may determine its nature in accordance with national legislation and practice. 131, 5.5.1998, p. 11. 0] L 0] L 188, 9.8.1995, p. 14. () (11) IOELVs should be regarded as an important part of the overall approach to ensuring that the health of workers is protected against the risks arising from hazardous chemicals. Results of the risk assessments and risk reduction strategies developed in the framework of Council Regu- lation (EEC) No 793/93 of 23 March 1993 on the evaluation and control of the risks of existing substances (°) show the need for the establishment or revision of occupational exposure limit for a number of substances. Commission Directive 91/322/EEC (¥) as amended by Directive ~ 2006/15/EC () contains  occupational exposure limits for 10 substances and remains in force. A first and a second list of IOELVs were established by Commission Directives 2000/39/EC (°) and 2006/15/EC under Directive 98/24/EC. This Directive establishes a third list of IOELVs under Directive 98/24/EC. In accordance with Article 3 of Directive 98/24[EC, SCOEL has assessed 19 substances, which are listed in the Annex to this Directive. One of these substances, phenol, was previously listed in the Annex to Directive 2000/39/EC. SCOEL has reviewed the IOELV for this substance in the light of recent scientific data and recom- mended the establishment of a short-term exposure limit (STEL) to complement the existing time-weighted average (TWA) IOELV. Therefore, this substance, now listed in the Annex to this Directive, should be deleted from the Annex to Directive 2000/39/EC. Mercury is a substance with potentially serious cumu- lative health effects. Therefore health surveillance including biological monitoring in accordance with Article 10 of Directive 98/24/EC should complement the IOELV. It is also necessary to establish short-term exposure limit values for certain substances to take account of effects arising from short-term exposure. 84, 5.4.1993, p. 1. 177, 5.7.1991, p. 22. 38, 9.2.2006, p. 36. L L L L 142, 16.6.2000, p. 47.