The aim of the CEN standardisation body in question was, instead of many details, to create a framework of definitions for lighting indoor work places within which designers and users of the standard can align with their own technical and regional possibilities. Since the year 2003, here have been uniform lighting requirements for the entirety of Europe, e.g. regarding offices (see chapter ), places of education (see chapter ), industrial and handcraft work places (see chapter ), hospitals (see chapter ), traffic areas (see chapter ).Thus, the partially great differences in earlier national technology regulations for indoor lighting were resolved and preconditions for similar working and visual conditions for all people in Europe were created. In that respect, these uniform standards also contributed to the societal and social harmonisation in the European Union. The first edition of EN 12464-1 appearing in 2003 has been adopted as a revised version in 2011. The following is based on this new edition. With the guidelines 89/654/EEC and 92/58/EEC on minimum provisions for safety and health in work places/at workstations, the European Union has also carried this process further. These guidelines must be implemented as national legislation. In Germany, this was done through the work place ordinance "Arbeitsstättenverordnung" (ArbStättV of 24.8.2004).