ATEX certification is mandatory and important because it certifies that a product has been designed and built with the safety requirements for use in ATEX fire and explosion risk areas. The manufacturer generates the technical documentation, in technical file format, accrediting compliance with the Directives that apply to it and the Standards that must be met, as well as the results of the tests that may have been necessary for this verification. The product/machine is marked according to its certification, which allows it to be marketed.