The Canadian English Language Proficiency Index Program (CELPIP) is an English language proficiency test accepted by a number of governments, professional organizations, universities, colleges, and employers as proof of English language proficiency. The test provides a valid and reliable measurement of a test taker’s English abilities in a variety of everyday situations, such as communicating with co-workers and superiors in the workplace, interacting with friends, understanding newscasts, and interpreting and responding to written materials.