The Restriction of Hazardous Substances Directive, or RoHS, is a regulation that restricts the use of certain hazardous materials in electronic and electrical equipment. However, there are several synonyms for this directive that refer to the same regulation. These synonyms include the EU RoHS directive, the RoHS 2 directive, and the RoHS recast. All of these terms refer to the same regulation that aims to protect the environment and public health by limiting the use of harmful substances such as lead, mercury, and cadmium in electronics. With these regulations in place, manufacturers are forced to use safer alternatives and create more sustainable products.