Guidance on Labelling and Packaging according to CLP or Regulation (EC) 1272/2008

The regulation (EG) Nr. 1272/2008 is a European Chemicals Directive that is also called CLP (Classification, Labelling and Packaging). Just as the name states, it offers guidance and rules that have to be taken into account when labelling and packaging certain substances.
You can find detailed information on CLP guidance here on the website of the ECHA (European CHemicals Agency) or directly in this PDF document.