The CES Educational Credential Assessment (ECA) reports for General Use will remain valid indefinitely, in the same way that your educational documents have no expiry date.
The ECA reports issued for immigration purposes will be valid for a period of five years. Please visit the IRCC website for more information.
An Educational Credential Assessment (ECA) report completed for the General (non-immigration) purposes cannot be used when applying for immigration. However, an ECA report completed for immigration purposes can be used for both immigration and non-immigration (general) purposes.