In 2016, the International Electrotechnical Commission (IEC) published the standard IEC 63000:2016. This standard provides guidance for 'technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances'.
At the end of 2018, the European Union released the standard EN IEC 63000:2018, based on IEC 63000:2016 to replace the previous EU standard EN 50581:2012.
All standards EN 50581:2012, IEC 63000:2016 and EN IEC 63000:2018 are essentially the same. The objective is to 'specify the technical documentation that the manufacturer compiles in order to declare compliance with the applicable substances restrictions' such as RoHS.