This Order shall come into force from the date of its publication in the Official Gazette. In clause 3 of the Telecommunication Tariff Order, 1999 (hereinafter referred to as the “principal tariff order”), for the word and figures “Schedules I to XII”, the word and figures “Schedules I to XIII” shall be substituted. After Schedule XII to the principal tariff order, the following schedule shall be inserted, refer attachment for further details.