In exceptional circumstances the president may represent Estonia in the European Council if the Prime Minister of Estonia is absent; appoints and recalls, upon proposal of the Government, the diplomatic representatives of the Republic of Estonia to foreign states and international organizations; receives the credentials of foreign diplomatic agents accredited to Estonia; declares regular elections of the Riigikogu (the parliament of Estonia) and, pursuant to respective provisions of the Constitution, its extraordinary elections. Extraordinary elections can be declared by the president at four occasions: if the Riigikogu turns out to be unable to pass the annual State Budget Act, if the Riigikogu fails to obtain the nation's approval on a referendum, if the Riigikogu fails to elect the Prime Minister after it receives the opportunity (at those three occasions announcing extraordinary elections is obligatory and the president simply acts as the "highest notary" of the state) or if the Riigikogu passes a censure motion against the Government, and the Government, in its turn, requests the president to consider announcing extraordinary elections (in this case the president may, however, say "no", if he (or she) finds organizing extraordinary elections unnecessary or unreasonable for whatever reason); convenes the new membership of the Riigikogu and opens its first session; proposes to the chairman of the Riigikogu to convene an extraordinary session of the Riigikogu (in case of necessity); promulgates laws and signs the instruments of ratification. The president may refuse to promulgate a bill into law within 14 days after its receipt (it is mostly done only if the president finds it contrary to the Constitution of Estonia).