Again the name of this Regulation comes from the first letters of a phrase: Classification, Labelling, and Packaging. As you know those three issues are very important for the chemical industry. Nowadays it may be obvious that a product composed of chemical substances on a shop shelf has a label informing you about any threats that may be caused by this product. This information and the way we display it on a product is regulated by the CLP. Born on 16 December 2008, it came into force on 20 January 2009, but a lot of time was given to companies to fully comply with this regulation. First, it was supposed to be 1 June 2015, but shortly before this date, the deadline was moved to 1 June 2017. So as you can see the time given to adapt new regulations can witness the complexity of these rules.
Even now every new regulation related to CLP has a transitional period for adaptation. This is because the legislator always gives time to sell out already packed and labelled products so that manufacturers or importers do not incur the additional costs of recalling outdated and incompatible products from the market. Substances and their mixtures can have different properties. Some of them can cause no harm to human health or the environment and some of them can be extremely hazardous. That is why the first step is to always define the possible hazard. That kind of information is not only important for the end-user, but also for everyone who had to deal with it on the way, starting from the producers, distributors or even transporters and ending on consumers.
Usually in EU, the chain of information starts with a manufacturer, but if the substance is imported from outside of EU this obligation can be transferred onto the importer. Chemicals can be harmful, toxic or fatal depending from the route of contact with the human body, whether the substance was inhaled, ingested or absorbed through the skin.