The two levels
The Subprofessional level is meant for positions that involve clerical, trades and custodial work, usually below a professional rank. The Professional level is meant for positions that involve professional, scientific or technical work, and it is generally the one needed for second-level positions.
Main differences
- Positions: Subprofessional eligibility fits first-level (clerical and similar) positions, while Professional eligibility fits second-level (professional and technical) positions.
- Coverage: Both levels test Verbal Ability, Numerical Ability and General Information. The Subprofessional exam also includes Clerical Ability, and the Professional exam includes Analytical Ability.
- Difficulty: The Professional exam is generally considered the more demanding of the two, especially in the analytical and numerical sections.
- Passing rate: Both levels use an 80% passing rate.
How to choose
Start from the job you want. Read the qualification standards of the position, which list the required eligibility, and pick the level that matches.
- If you are aiming for clerical or entry-level support roles, Subprofessional may be enough.
- If you are aiming for professional or technical roles, or you want the widest range of options, take the Professional level.
- If you are unsure, ask the HR office of the agency you hope to join or contact your nearest CSC office.
Preparing for either level
Both levels reward the same habits: regular practice, careful reading and reviewing every mistake. Use our reviewer to practice all the sections for your level and aim for 80% or higher in every part before the exam.
Rules about which level qualifies for which position can change, so always check the latest CSC guidelines.