Foreign (majority-owned) construction companies can only be temporarily registered for the purpose of carrying out specific construction contracts.
"2.   Interpretation
In this Act, unless the context requires otherwise–[…]
"contractor" means-
(a) any person who for a reward or, other valuable consideration undertakes to carry out and complete any construction works for another person, of any structure situated below, on or above the ground or water bodies or other work connected therewith, where such person undertakes to do any such works- (i) himself supplies the material necessary 'for the work or is authorized to exercise control over the type, quality or the use of material supplied by any other person; (ii) himself supplies the labour necessary for the work or is authorized on behalf of the person for whom the work is undertaken or any other person, to employ or select for employment workmen to assist him in the execution ofthe work; or
(b) any person who for himself as a developer or investor, undertakes to carry and complete construction works of any structore for public or private use or other works connected therewith, where such person undertakes to do any such works-
(i) himself supplies the labour necessary for the works or is authorized to exercise control over the type, quality or the use of material supplied by any other person; or (ii) himself authorized on behalf of the person for whom the work is undertaken or any other person, to employ or select for employment workmen to assist him in the execution ofthe work; [...]
"construction works" means construction, extension, installation, repair, maintenance, renewal, removal, renovation, alteration, dismantling or demolition of-
(a) any building, edifice, structure, wall, fence, or chimney whether constructed wholly or partly above or below ground level;
(b) any road, harbour works, railway, cableway, canal., or aerodrome, bridge, viaduct, dam, reservoir, earthworks, pipeline, sewer, aqueduct, culvert, drive shaft, tunnel, or reclamation works, any drainage, irrigation or river control works;[...]
"foreign" in relation to a firm or company means a firm or company registrable under Part XII of the Companies Ordinance whose majority shares are owned by non-citizens;
"local" in relation to a natural person, means a citizen of the United Republic, and in relation to a firm means a contracting firm or company incorporated in Tanzania whose majority shares are owned by the citizens of the United Republic;
[...]
10.A. No person, or firm shall undertake or cause to carry out and complete any construction works unless such person or firm is registered by the Board, and holds a valid certificate of registration.
11-(1) Where a person satisfies the Board that-
(a) the principal of the construction firm is not a citizen of Tanzania;
(b) the firm has been incorporated outside Tanzania;
(c) the firm intends to be present in Tanzania in the capacity of a contractor for the express purpose of carrying out a specific contract for which the firm has been contracted the sum of which is not less than the sum prescribed by the Board for the category, type and class of contractors of which registration is being sought;
(d) the firm has a certificate of compliance from the Registrar of Companies showing that the firm is or immediately prior to entering Tanzania was, trading as a contractor in the capacity which satisfies the Board of his fitness to -serve the public as a qualified contractor;
(e) the firm has in its employment, only those expatriates whose qualification and skills are not available in Tanzania;
(f) the firm has lodged an affidavit with the Board to the effect that, once the contracted works are completed and the period of defects liability or maintenance has elapsed or closed down business as an investor, then it shall wind up business and not engage itself in contracting business, the Board may, if it thinks fit, direct that firm be registered under this section for the duration of the contracted works.[...]
(3) Registration of a firm under this section, shall entitle it to undertake work only for the duration or the period of contracted work which is directed by the Board in subsection (1) and on the expiration of the period of the contracted works, that firm shall cease to have been so registered, and shall return the registration certificate to the Board within twenty-one days ofthe expiration ofthe period ofthe contracted works.
[...]
12.--(1) No person who is not a citizen of the United Republic shall Restricbe allowed to form a local contracting firm unless the majority of its shares of authorized capital are owned by the citizens of United Republic; and  [...]
(4) Subject to the provisions of sub-section (2) and (3), the Board may require an employer of a firm or company to appear before it for the purpose ofascertaining- (a) documentary evidence to the effect that a firm or company is competent to execute construction works in respect of which it has or is about to enter into contract in Tanzania; (b) provisions in the proposed contract for construction works, addressing temporary registration requirements as specified in section 11.
[...]
PART V - Restriction ON TRADING AS CONTRACTOR
21. Every contractor whose name has been entered in the register shall, so long as his name remains in the register, be entitled to adopt and use the style and title ''Registered Contractor'' or such contraction thereof as the Board may approve, and to offer his services to the public for valuable -consideration or reward or by way of trade, as a registered contractor.
22.-(1) Any person who or any firm which- (a) not being a registered contractor falsely pretends to be such; or (b) not being entitled to do so under section 21, uses a style or title as of ''Registered Contractor'' or any other name, type, title or in the circumstances in which it is used that such person is so registered; (c) not being a registered contractor, holds himself out other than for the purpose of applying for registration, whether directly or by implication to be a qualified and experienced contractor; (d) not being a registered contractor, trades or caries on business as contractor in Tanzania; commits an offence and upon conviction is liable to a fine of not exceeding ten percent of the contract sum or project value but not less than one percent of the contract sum or project value of an executed contract or contract in hand or five million shillings which is higher or to imprisonment for a term of not less than three years or to both that fine and imprisonment.[...]" (Contractors Registration Act of 1997, as amended)
--------------
"8.   Class limits
(1) The class limit for any single contract by a contractor shall be as set out in Table 1 of the First Schedule.
(2) Foreign contractors shall be limited to class I only.[...]
(4) The Board may on an annual basis review the class limits set out in Table 1 of the First Schedule.
[...]
Table 1: Class Limits for various Types of Contractors
Type | Class | Class Limit ( Mil.TZS)
Civil | One | Unlimited [...]
Building | One | Unlimited [...]
Mechanical | One | Unlimited [...]
Electrical | One | Unlimited [...]
Specialist Building | One | Unlimited [...]
Specialist Civil Works | One | Unlimited [...]
Specialist Mechanical | One | Unlimited [...]
Specialist Electrical | One | Unlimited [...] (Contractors Registration Bylaws, 1999, as amended)
Contractors Registration Act of 1997, as amended
Contractors Registration Bylaws, 1999, as amended
[<a href="https://crb.go.tz/download/alllegislations/The%20Contractors%20Registration%20Act%20of%201997.pdf">Act</a>],[<a href="https://crb.go.tz/Legislation">Reg</a>]