Only Tanzanian ships may be engaged in local trade (passenger and cargo cabotage); registration of a Tanzanian ship is reserved to Tanzanian nationals, individuals or corporations owning ships hired out on bareboat charters to nationals of Tanzania, and individuals or corporations in bona fide joint venture shipping enterprise relationships with nationals of Tanzania.
"2.-(1) In this Act, unless the context otherwise requires-[...]
''bareboat charter'' means hiring or leasing of a ship for a period of time during which the ship owner provides only the ship while the charterer provides the crew together with the stores and bunkers and pays all operating costs;
[...]
PART III - RESTRICTION ON TRADING
Restriction 10.-(1) No ship shall trade in or from the waters of Tanzania unless on trading the ship -
(a) is a Tanzanian ship; or
(b) is provided with a certificate of foreign registry.
(2) Subject to the provisions of any Regulation made under this section or of any international agreement, only Tanzanian ships may be engaged in local trade in Tanzanian waters
[...]
PART IV - REGISTRATION AND LICENSING OF SHIP
(a) Registration
12. A ship shall be a Tanzanian ship for the purposes of this Act if such ship is registered in Tanzania under this Part.
13.-(1) Subject to section 45, no ship shall be registered in Tanzania under this Act unless she is wholly owned by persons qualified to own a Tanzanian ship, namely -
(a) nationals of Tanzania;
(b) individuals or corporations owning ships hired out on bareboat charters to nationals of Tanzania; 
(c) individuals or corporations in bona fide joint venture shipping enterprise relationships with nationals of Tanzania as may be prescribed;
(d) such other persons as the Minister may by Order, specify.
(2) Every ship of 50 Gross Tonnage (GT) or over that is owned by persons qualified to be owners of Tanzanian ship shall unless exempted, be registered as a Tanzanian ship:
[...]
(f) Licensing
53.-(1) Subject to subsections (2) and (3), every ship under 50 Gross Tonnage (GT) shall be licensed under this Act.
54.-(1) No ship shall be licensed in Tanzania unless she is owned by any of the persons referred to in section 13.
[...]
PART XIII - LOCAL AND COASTAL VOYAGES [...]
(2) For the purposes of this section, a ship is deemed to be engaged in local trading when the ship takes on board passengers or cargo at a port in Tanzania to be carried to or landed at another port in Tanzania or anywhere within the East African Trading Area.[...]" (Merchant Shipping Act, 2003)
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"Part III -  Qualification and entitlement for registration [...]
6.(1). Subject to regulation 27(4) a ship shall be entitled to be registered if a majority interest in the ship is owned by one or more persons qualified to be owners of Tanzanian ships.
(2) For the purposes of sub-regulation (1)-
(a) one or more persons shall be treated as owning a majority interest in a ship if there is vested in that person or in those persons, taken together, the legal title to 33 or more shares; and
(b) a body corporate shall be treated as resident in the United Republic of Tanzania if it has a place of business in  the United Republic of Tanzania.
(3) The owner of such ship shall fulfull the following:
(a) all ratings engaged on board of the ship shall be Tanzanian;
[...]
Part IV -  Qualification and entitlement of fishing vessels to be registered
7.(1) The following persons are qualified to be owners of fishing vessels which are to be registered:
(a) national of Tanzania;
(b) individuals or corporations owning ships hired out on bareboat charters to nationals of Tanzania; 
(c) individuals or corporations in bona fide joint venture shipping enterprise relationships with nationals of Tanzania as may be prescribed;
(2) Subject to Regulations 8 and 27(2), (3) and (4), a ship shall be entitled to be registered only if the legal and beneficial title of the vessel are vested wholly in one or more of those persons qualified to be owners of a Tanzanian fishing vessel by virtue fo Regulation 7(1).
8.(1) Notwithstanding that the requirements specified in Regulation 7(2) are satisfied a vessel shall not be registered unless:
(a) it is managed, and its operations controlled and directed, from within the United Republic of Tanzania;
(b) any charterer, manager or operator of the vessel is a person qualified to be the owner of a Tanzanian fishing vessel by virtue of Regulation 7(1)[...]" (Merchant Shipping (Registration of Ships and Lincensing of Vessels) Regulations, 2005)
Merchant Shipping Act, 2003
Merchant Shipping (Registration of Ships and Lincensing of Vessels) Regulations, 2005
[<a href="https://www.tasac.go.tz/uploads/publications/sw1542642572-Merchant_Shipping_Act_21-2003.pdf">Act</a>],[<a href="https://www.tasac.go.tz/uploads/publications/sw1627210182-Merchant%20Shipping%20(Registration%20of%20Ships)%20Regulations,%202005.pdf">Reg</a>]