No foreign contractor, institution or firm shall conduct business in South Sudan whether individually or in partnership without engaging the participation of a registered South Sudanese contractor who shall be retained as a senior technical counterpart. Additionally, no contracting firm shall recruit foreign nationals to perform more than 40% of all the professional engineering tasks of the contract project. Moreover, any foreign consultant or consultancy firm wishing to provide engineering consultancy services shall have participation of a person or firm that is duly registered in the national registry.
"CHAPTER V: REGISTRATION [...]
Article 22: Categories and Levels of Registration.
Without prejudice to the provisions of section 21 above, the registration and licensure for individual applicants shall be issued in the following categories and grade levels:
(a) Engineers: (i) Consultant Engineer; (ii) Professional Engineer; and (iii) Graduate Engineer.
(b) Architects: (i) Consultant Architect; (ii) Professional Architect; and (iii) Graduate Architect.
(c) Technologists: (i) Technologist Fellow; (ii) Technologist Member; and (iii) Graduate Technologist;
(d) Engineering Technician: (i) Engineering technician Fellow; (ii) Engineering technician Member; and (iii) Graduate Engineering technician;
(e) Skilled Workers; (i) Supervisor; (ii) Foreman; and (iii) Skilled Worker.
Article 23. Mandatory Registration.
No person shall practice in the Engineering profession in South Sudan in any of the categories specified under section 22 of this Act, whether in public or private sector, without first being registered and licensed in accordance with the provisions of this Act.
Article 24. Registration to the National Registry. [...]
(4) Any applicant for registration to the National Registry shall provide sufficient proof of: 
(a) being a South Sudanese national; [...]
[...]
25. Temporary Registration of Non-South Sudanese.
(1) The Council may grant Temporary Registration and limited licenses to non-South Sudanese who meet the registration and licensure requirements set forth in this Act; provided that the country of origin of such an applicant shall have a reciprocal policy of recognising and permitting registration and licensing of South Sudanese within its territory. 
[...]
27. Registration of Consultancies and Contractors.
Engineering firms, companies or entities engaged in professional engineering services within South Sudan organized under their own individual or partnership Consultancy Firms, Contractors or Contracting Companies, whether, national, regional or international, shall register by submitting an application for registration and depositing their documents of eligibility with the Council within a period of ninety (90) days from the date the Council shall commence its business.
28. Eligibility for Registration of Contractors and Contracting Firms.
(1) Contractors and Contracting Firms may be eligible for registration and licensure in South Sudan upon fulfilment of the following conditions:
(a) have existing legitimate registration and verifiable physical place of business;
(b) present a company profile and documents relating to its incorporation, business names, human and financial resources, operating capital and tract record of field experience including projects worked on in the past three years prior to submitting the application; and
(c) Have not have been involved in fraudulent activities or professional misconduct for the past five years.
(2) No government department or institution shall engage a contractor or contracting firm that has not been duly registered by the Council.
(3) No foreign contractor, institution or firm shall conduct business in South Sudan whether individually or in partnership without engaging the participation of a registered South Sudanese contractor who shall be retained as a senior technical counterpart.
(4) No contracting firm shall recruit foreign nationals to perform more than 40% of all the professional engineering tasks of the contract project.
(5) The Council may waive the application of sub-section (3) of this section, where public interest requires, provided that due regard shall be had to the training of South Sudanese nationals.
29. Consultancy Services.
(1) Consultancy services include but are not limited to the following:
(a) preparation of the preliminary studies including economic and technical feasibility studies for different projects;
(b) Planning, designing or preparing detailed document necessary for executing engineering projects;
(2) Preparation of environmental impact studies of development projects; and
(3) Carrying out technical and financial evaluation for the performance of any establishment, company or projects.
30. Foreign Consultants and Consultancy Firms.
(1) No foreign consultants or consultancy firm shall render Engineering Consultancy Services in South Sudan without first being registered under either the National Registry or on the Temporary Registry for non-South Sudanese nationals.
(2) Any foreign Consultant or Consultancy Firm wishing to provide Engineering Consultancy Services shall have participation of a person or firm that is duly registered in the National Registry.
(3) The Council may waive the requirements of sub-section (2) of this section, where public interest requires; provided that where waiver is warranted, the Council shall ensure that due regard is given to training of South Sudanese nationals.[...]" (Engineering Council Act, 2012, Articles 22-30)
Engineering Council Act, 2012
[<a href="https://mojca.gov.ss/wp-content/uploads/2023/03/Engineering-Council-Act-32-of-2012.pdf">Act</a>]