The main legislation in Zanzibar is the Zanzibar Industrial Property Act, 2008 and the Industrial Property Regulations, 2014.Zanzibar  is also a party to the following Conventions:

• World Intellectual Property Organization convection 1967 (effective for Tanzania  from 30 Dec,1983)
• Paris convention (international Union) 1883-1967 (effective for Tanzania from 16 June,1963)
• Nice Agreement Concerning the International Classification of Goods and Services for the Purpose  of the Registration of Marks (Nice Union) 1957-1977 (effective for Tanzania from 14 September,1999
• Agreement on the creation of the African Regional Industrial Property Organization 1979 (effective for Tanzania from 12 October, 1983
• The Protocol on Marks within Framework of African Regional Industrial Property Organization (the Harare Protocol) 1993 effective for Tanzania from 01 Sept 1999
• Agreement on Trade Related Aspects of Intellectual Property Right (Annex IC of the Marrakesh Agreement Establishing the world Trade Organization )1994
Once you register Trademark in Zanzibar your will be required to registered it again in Tanzania Mainland since it will be only protected in Zanzibar. Even though Tanzania is a union of Tanzania mainland (Tanganyika and Zanzibar, registration is done on both part of the country separately.
In Zanzibar, the first registration period is ten (10) years. The term of registration can be renewed indefinitely for further seven (7) years after expiry of original registration or of the last renewal of registration. The duration of registration for a trade or service mark registered under ARIPO system is ten (10) years and renewal for ten year periods indefinitely.