11. Registration with the Board is thus a license to practice engineering in United Republic of Tanzania . 12. The United Republic of Tanzania is a unitary republic composed of 26 mkoa ( regions ). 13. Provided under article 109 ( 3 ) of the Constitution of the United Republic of Tanzania . 14. Zanzibar united with Tanganyika in 1964 after a violent upheaval to form the United Republic of Tanzania . 15. "' Mkomongo "'is a Tanzanian Village which is located at Moshi District, Kilimanjaro Region, the United Republic of Tanzania . 16. From June to July 2014, Prince Fumihito and Princess Kiko visited Republic of Zambia and United Republic of Tanzania . 17. Zanzibar federated with what was then known as Tanganyika after the revolution to form the United Republic of Tanzania . 18. He is a Goodwill Ambassador for the United Republic of Tanzania , an appointment he has held since April 2010. 19. Zanzibar, an archipelago off Africa's east coast, united with Tanganyika in 1964 to form the United Republic of Tanzania . 20. It existed for less than a year before it merged with Tanganyika to create the United Republic of Tanzania .