The GATS, like all other Uruguay Round agreements, is an annex to the World Trade Organization (WTO) agreement. It therefore does not have its own signing and ratification process, but will come into force at the same time as the WTO agreement and all other annexes. There is no opt-out of the GATS: those who want to take advantage of the other elements of the Uruguay cycle must also respect the GATS. 15 This paragraph understands that each member ensures that the obligations of this schedule are applied to public telecommunications network and service providers by all necessary measures. MFN Treatment: Article II of the GATS authorizes members to treat the service providers of all other members without delay and unconditionally, “a treatment that is no less favourable than that given to comparable service providers in another country.” In principle, this is a prohibition of preferential regimes between groups of members in certain sectors or reciprocity rules that limit access to the dense to trading partners who give similar treatment. Article I, paragraph 3 of the GATS excludes “services provided in the exercise of state authority.” These are services that are not provided on a commercial basis or in competition with other providers. In cases, these are social security systems and all other public services, such as health or education, which are provided in non-market conditions. These ongoing services negotiations have been incorporated into the Doha Development Agenda, launched by the FOURTH WTO Ministerial Council in Doha, Qatar, in November 2001. The Doha Declaration endorses the work already done, reaffirms negotiating guidelines and procedures, and sets out some key elements of the timetable, including a deadline for the submission of market access applications by no more than 30 June 2002 and the first offers until 31 March 2003, while the current regime and other issues continue in the Council`s subsidiary bodies.