By decision of July 5, and following an audit of CTT - Correios de Portugal, S.A.'s 1999 financial year results, CTT - Correios de Portugal, S.A.'s cost accounting system was declared to be in compliance with the obligations contained in Directive 97/67/CE of December 15, Law no. 102/99, of July 26, (Basic Law for Postal Services), Decree-Law no. 448/99, of November 4 (Bases of the Universal Postal Service Concession) and the Price Agreements of the Public Postal Service.
- Statement on the Cost Accounting System of CTT - Correios de Portugal, S.A. for the 1999 financial year https://www.anacom.pt/render.jsp?contentId=417512
- Notice of 03.08.01, published on 17 August https://www.anacom.pt/render.jsp?categoryId=214402