REACH restricts the use of 224 chemical substances and applies to nearly all products, whereas RoHS restricts the use of 10 hazardous substances above certain levels and applies solely to electronics and electrical equipment. Companies that manufacture, distribute, or import more than one ton of substances per year must apply for authorization of Substances of Very High Concern (SVHCs) to demonstrate compliance with REACH. They are also prohibited from using substances that are on the restricted list. To comply with RoHS, products must be tested for the ten restricted substances to verify that they are within acceptable limits. Subsequently, companies must obtain a CE Mark and keep a technical file for ten years after the product is placed on the market.