The competition involves four categories:
- Secondary Schools
- Junior Colleges
- Polytechnics and ITEs
- University, Singapore & International
Each team is made up of professional engineer mentors or teachers, and students from Secondary Schools, Junior Colleges, Polytechnics and ITEs. Teams can be made up of either individuals or a team of up to three students. There is no limit to the number of mentors. Schools may allow as many students as they wish to participate. Students have up to four months for the competition before the final judging round, with all teams invited to take part and compete during the event itself. From these teams, a final selection of 18 teams, nine from Secondary Schools and nine from Junior Colleges, Polytechnics and ITEs, will be selected for the final judging.