This list contains substances assigned a binding occupational exposure limit value (OELV) by the European Union. National OELVs for these substances may not deviate from the limits in the Directive. Annex III contains a list of prohibited substances and their concentration limit values in percent by weight.

This list contains a non-exhaustive inventory of substances taken from: (1) Table 3 of Annex VI to CLP; (2) the Candidate List of SVHCs; (3) Annex XIV of REACH (Authorisation List); (4) Annex XVII of REACH (Restrictions List); (5) F-gases subject to emission limits/reporting per Regulation 517/2014/EU; and (6) volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the Construction Products Regulation 305/2011/EC, which stipulates that construction works must not have a high impact on human health or the environment as a result of: giving off toxic gas; emissions of dangerous substances, volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous substances into drinking water, ground water, marine waters, surface waters or soil.

This list contains a non-exhaustive inventory of substances that fall within the European Union's hazardous substance definitions, as provided on: (1) Table 3 of Annex VI to the CLP Regulation 1272/2008/EC; (2) Annex III of Directive 2000/54/EC (Biological Agents); Candidate List of SVHCs; and REACH Annexes XIV and XVII (Authorisation and Restriction lists). They can be considered hazardous for purposes of the General Product Safety Directive 2001/95/EC.