Directive 1999/92/EC, also known as the ATEX 137 Directive, is a European Union regulation aimed at improving safety in workplaces where explosive atmospheres may occur. It sets out minimum requirements for the protection of workers from risks related to explosive environments, ensuring that employers assess and manage these risks effectively. The directive requires employers to implement safety measures, provide training, and inform workers about potential hazards. It also emphasizes the importance of proper equipment and workplace design to minimize the risk of explosions, thereby enhancing overall workplace safety in industries such as mining, chemical production, and oil and gas.