The providers of postal services have the right to freely fix the prices for the services they provide -under article 36. However, the universal service providers have to comply with certain principles in fixing the prices - accessibility for all users, cost-orientation,transparency and non-discrimination as well as motivating an efficient provision of universal services - see article 14 (1) in particular. Moreover the ICP-ANACOM fixes annually the criteria which has to be considered in the establishment of prices for the universal services. The regulator has also the capacity to establish a price cap if it deems it necessary to promote competition. More info: http://www.ctt.pt/contentAsset/raw-data/f90e0252-3f31-46a6-8ef8-23f6210eb2ce/ficheiroPdf/Comunicado_Pre%C3%A7os_28%2011%202014_PT.pdf?byInode=true