Candidates falling in any one of the following are ineligible to appear in the ISSB tests:
- Those who do not fulfill the academic qualifications advertised by respective services headquarters.
- Those found medically unfit.
- Those who have been twice Screened Out.
- Those who have been twice Not Recommended by ISSB.
- Those withdrawn from any training academy on disciplinary ground or found unsuitable.
- Those dismissed from government service on disciplinary or unsuitability grounds.
- Those dismissed from Armed Forces on disciplinary ground or being unsuitable.
- Those convicted in the court of law.
- Any candidate who appeared in ISSB within last 4 months.
- RECOMMENDED candidates are ineligible to appear for the tests of any course for one calendar year starting from the date of recommendation at ISSB.