For those who get enrolled for engineering degree programmes with effect from 2018/05/01

• Minimum of 2 “C” passes and 1 “S” pass in GCE Advanced Level (Local) in the Physical Science Stream (Combined Mathematics, Physics and Chemistry) in one and the same sitting
• Minimum of 2 “B” passes and 1 “C” pass in GCE Advanced Level (Cambridge or Edexcel) covering Combined Mathematics, Physics and Chemistry in one and the same sitting

For those who have completed or enrolled for engineering degree programmes before 2018/05/01

• Minimum of 3 ordinary passes in GCE Advanced Level (Local) in the Physical Science Stream (Combined Mathematics, Physics and Chemistry) or comparable passes as prescribed by the IESL in GCE Advanced Level (Cambridge or Edexcel) covering Combined Mathematics, Physics and Chemistry in one and the same sitting.

Note : Those who have completed or enrolled for engineering degree programmes before 2018/05/01 without fulfilling the minimum qualification requirement of 3 ordinary passes in GCE Advanced Level (Local) in the Physical Science Stream (Combined Mathematics, Physics and Chemistry) or comparable passes as prescribed by the IESL in GCE Advanced Level (Cambridge or Edexcel) covering Combined Mathematics, Physics and Chemistry in one and the same sitting, MUST successfully complete the IESL entry qualifying examinations before applying for the Associate Membership of the IESL (Please note that the IESL will conduct entry qualifying examinations only until 2020).

Source : https://iesl.lk/index.php?option=com_content&view=article&id=47&Itemid=166&lang=en#entry-requirement-for-the-associate-memberships