The following signatories of the Washington Accord have confirmed their recognition of the programmes. Confirmation on continuous recognition of the programmes will be sought:
| Australia | Represented by Engineers Australia |
| Canada | Represented by Engineers Canada |
| China | Represented by China Association for Science and Technology |
| Chinese Taipei | Represented by Institute of Engineering Education Taiwan |
| Costa Rica | Represented by Colegio Federado de Ingenieros y de Arquitectos de Costa Rica |
| India | Represented by National Board of Accreditation, India |
| Ireland | Represented by Engineers Ireland |
| Japan | Represented by Japan Accreditation Board for Engineering Education |
| Korea | Represented by Accreditation Board for Engineering Education of Korea |
| New Zealand | Represented by Institution of Professional Engineers New Zealand |
| Peru | Represented by Instituto de Calidad y Acreditación de Programas de Computación, Ingeniería y Tecnología en ingeniería |
| Russia | Represented by Association for Engineering Education of Russia |
| Singapore | Represented by Institution of Engineers Singapore |
| South Africa | Represented by Engineering Council of South Africa |
| Turkey | Represented by Association for Evaluation and Accreditation of Engineering Programs (MUDEK) |
| United Kingdom | Represented by Engineering Council UK |
| United States | Represented by Accreditation Board for Engineering and Technology |
The following signatory of the Washington Accord has confirmed its recognition of the HKIE accredited programmes at the University of Macau on a case by case basis, where accreditation made by the HKIE will contribute a significant weighting to the final consideration. Confirmation on continuous recognition of the programmes will be sought:
| Sri Lanka | Represented by The Institution of Engineers Sri Lanka |