Recital (34)

In order to promote the use and harmonisation of reference values among risk assessors and risk managers across different Union legal acts and to facilitate compliance with, and enforcement of, regulatory reference values, the ECHA should establish and maintain a repository of reference values that are established or adopted under the Union legal acts listed in Annexes I and II. The Agencies should provide the ECHA with reference values they hold or establish as part of their activities. In addition, the ECHA should regularly screen Union legal acts for reference values adopted under them. To facilitate easy access of the public to up-to-date reference values, the ECHA should incorporate the repository of reference values in the common data platform as a dedicated service and include in that repository all reference values it has received or retrieved, together with the relevant context data. The ECHA should ensure that those values and those context data are machine readable. The ECHA should also include in the repository of reference values any other reference values it considers relevant and that are generated as part of Union, national or international programmes or from research activities and made available to the ECHA in a standard format where such format is available. For a reference value for the carcinogenic effect of a chemical for which no maximum exposure level can be specified below which no harmful effects on human health are to be expected, the statistical cancer risk associated with that reference value should also be specified, if known.