States for which European patent applications may be filed 
4.1.002
When filing a European patent application all the contracting states for which the EPC has already entered into force on the date of filing are deemed to be designated (see point 2.2.001 for the list of contracting states).
Switzerland and Liechtenstein may only be designated jointly. 
OJ EPO 1980, 407
4.1.003
In addition, European patent applications and patents may be extended to a number of states not party to the EPC, these at present being Bosnia and Herzegovina and Montenegro (see point 2.5.001).
4.1.004
European patent applications and patents can be validated in the countries in which a validation agreement entered into force on or before the date of filing of the European patent application (see point 2.5.001).
References in this Guide to the designation of contracting states also apply to extension to and validation in non-contracting states, unless explicitly stated otherwise.
4.1.005
Even though all the contracting states are deemed to be designated upon filing of the application you must subsequently confirm the designations by paying the appropriate fee, which covers the designation of all contracting states, unless you have expressly withdrawn individual designations. 
As regards extension and validation states, all extensions and validations are deemed to be requested upon filing of the application, but you need to confirm the request for extension/validation by paying the extension/validation fee for each state to or in which you wish to extend or validate protection. 

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