Refer to the instructions in the "Language Skills" section of the "Will You Qualified as a Skilled Worker" page of our website at www.cic.gc.ca/skilled. If you are claiming proficiency at any level in English or French, submit one of the following:
* test results from an approved language-testing organization:
We strongly recommend that you submit test results if you are claiming proficiency in a language that is not your native language. You must submit the original reports to us directly: photocopies are unacceptable. Language test results must not be older than one year upon submission.
or
* other evidence in writing:
your written submission detailing your training in, and use of, English and/or French
official documentation of education in English or French
official documentation of work experience in English or French
other applicable documentation
so, if there are other supporting documents, no IETLS is also OK!