COMMENTS: Royal Decree 579/2017 regulates certain aspects of tobacco manufacturing, presentation (packaging), and sale. This decree transposes many of the provisions of Directive 2014/40/EU (Tobacco Products Directive), including the requirements of health warnings to be placed on tobacco product packaging. Manufacturers and distributors had until September 11, 2017, three months from the date of entry into force, to comply with the new health warning requirements. Products meeting the prior health warning requirements were permitted to be sold until April 11, 2018, ten months from the date of entry into force.