- Employability Skill Level Workplace Literacy and Numeracy Level 6; OR Grade C6 in GCE ‘O’ Level for English, Maths and Science AND Recognised Technical/Engineering Diploma or Grade C6 in GCE ‘O’ Level Science (Chemistry)Please read the Pre-requisites and attach the relevant certifications here. It will be sent to MOM for course entry approval. If more documents are needed, ISRC will reach out to you. Thank you