ARTICLE 28
Entry into Force
(1) This Agreement shall be ratified and the instruments of ratification shall be exchanged at Ulaanbaatar as soon as possible.
(2) This Agreement shall enter into force one month after the date of exchange of the instruments of ratification and shall have effect:
- (a) in respect of tax withheld at source in respect of amounts paid on or after the first day of January of the calendar year next following that in which the Agreement enters into force;
- (b) in the case of other taxes, in respect of taxes levied for periods beginning on or after the first day of January of the calendar year next following that in which the Agreement enters into force.