A/RES/56/252 C 2. In addition: (a) Any other unliquidated obligations of the financial period in question owed to Governments for provision of goods and services rendered but not yet verified as well as other obligations owed to Governments for which claims have not yet been received shall remain valid for an additional period of four years following the end of the twelve-month period provided for in financial regulation 4.3; (b) Claims received during this four-year period as well as approved verification reports shall be treated as provided for under paragraph 1 of the present annex, if appropriate; (c) At the end of the four-year period, any unliquidated obligations shall be cancelled and the then remaining balance of appropriations retained therefor shall be surrendered. 5