A Licensed Engineering Technologist (L.E.T.) is a class of licensee within Professional Engineers Ontario. It is a class of limited license authorised under the Professional Engineers Act of Ontario, which allows a holder to practice, and take responsible for the practice of engineering within a limited scope of work.
A limited license may be provided in the case that a person has, through at least 13 years of specialised experience, become competent at a certain area of professional engineering. They may only practice within the scope of their license.
References
Licensed Engineering Technologist Wikipedia(Text) CC BY-SA