Canadian · Professional Licensing
OACETT find a member lookup.
OACETT certifies engineering and applied science technicians and technologists in Ontario. Its Find a Member search confirms whether someone is an active member. This page explains the fields, what the designations mean and how this differs from checking an engineer.
OACETT’s page says that to verify an individual is an active member you enter all or part of the first and last name; the name fields use starts-with matching, and there is also a membership number field.
The four search fields
Find a Member has First Name, Preferred First Name, Last Name and Membership Number. The first, preferred first and last name fields match the start of what you type, so part of a name is enough, and the page asks you to include a first and last name. OACETT’s page does not state a membership-number pattern, so none is given here.
If a surname contains an apostrophe (OACETT’s example is O’Neill), or you have questions about verifying a member, the page directs you to the Office of the Registrar at registrar@oacett.org rather than relying on the search. It also notes that OACETT registers members in their full legal name, so a person who goes by another name may appear under the legal one. If you only know a nickname, try the preferred first name field as well.
Search OACETT’s Find a Member
Enter the name (or the membership number, if you were given one) and check that the member is active.
What OACETT certifies
OACETT describes itself as a non-profit, self-governing regulatory body and professional association of over 21,000 members, and as Ontario’s independent certifying body for engineering and applied science technicians and technologists. It confers two certifications: C.Tech. (Certified Technician) and C.E.T. (Certified Engineering Technologist). It says the A.Sc.T. (Applied Science Technologist) designation is no longer conferred but is still used by some members.
OACETT’s designations page also lists other designations, for example Fellow OACETT, Municipal Infrastructure, Road Construction and the Licensed Engineering Technologist (LET), which it says is awarded to OACETT Certified members who meet requirements assigned by Professional Engineers of Ontario. A person may therefore legitimately carry more than one set of letters.
Technologist or engineer: which register?
OACETT members are technicians and technologists, which is a different group from licensed professional engineers. OACETT itself describes engineering technicians and technologists as part of an engineering team that also includes engineers, scientists and tradespeople, each doing a different part of the work. If someone says they are a P.Eng., that is a matter for Professional Engineers Ontario, and its lookup is the place to check it. If someone says C.E.T. or C.Tech., this search is the place to check it.
Do not confuse verification with the member login
Elsewhere on OACETT’s site there are fields asking for a membership number and date of birth. Those belong to members registering for their own portal login. They are not a way to check another person, and you should never enter someone else’s date of birth anywhere. Use Find a Member for verification, which asks only for names or a membership number.
A worked example (hypothetical)
A contractor’s quote lists “J. Example, C.E.T.” (made up) as the person who will prepare the drawings, and you want to confirm the designation. This describes no real person.
Open Find a Member and enter “J” in first name and the surname in last name; the starts-with matching accepts partial names, but the page asks for both. If several people appear, use the preferred first name field or the membership number from the quote. Check that the person is shown as an active member. If the surname contains an apostrophe, the search may not handle it, so email the Office of the Registrar at the address on the page instead. If no active member matches, ask the contractor for the membership number and search again. Remember that being a technologist does not mean the work can be stamped as an engineer’s; if the job needs a P.Eng., check Professional Engineers Ontario.
What this page does not cover
- It does not run the member search or store any name; there is no form on this page.
- It does not check engineers, architects, tradespeople or other professionals. Use the matching register for each.
- It does not say what work a C.E.T. or C.Tech. may lawfully do on a given job.
- It does not describe a membership number format, because the OACETT page does not.
- It does not cover technologists certified in other provinces, who have their own bodies.
Frequently asked questions
How do I check if someone is a certified technologist in Ontario?
Use OACETT’s Find a Member search. Enter all or part of the first and last name, or a membership number, and check the member is active.
What does C.E.T. stand for?
OACETT says C.E.T. stands for Certified Engineering Technologist. C.Tech. stands for Certified Technician.
Is a technologist the same as a professional engineer?
No. OACETT members are technicians and technologists. Professional engineers are licensed by Professional Engineers Ontario, which has its own lookup.
What if my surname has an apostrophe?
OACETT directs people searching for a name with an apostrophe, such as O’Neill, to the Office of the Registrar at registrar@oacett.org.
Why might a member appear under a different name?
OACETT says it registers members in their full legal name. The search also has a preferred first name field you can try.
Can I search by membership number?
Yes. The form includes a Membership Number field.
What is the A.Sc.T. designation?
OACETT says A.Sc.T. (Applied Science Technologist) is no longer conferred but is still used by some members.
Does TNAADO verify OACETT members?
No. This page explains the official search and links to it. It does not look anyone up or collect any information.
Sources
Retrieved
- OACETT: Find a Member (search fields, apostrophe guidance, legal name policy)
- OACETT: Who We Are (certifications, A.Sc.T., membership size)
- OACETT: Designations (Fellow, LET, Road Construction, Municipal Infrastructure)
Official register and regulator pages only. Each link was opened on the retrieval date and the facts above were read from it. The register itself is the authority.
Guide only — not a verification tool
This page explains a public register and links to it. TNAADO does not check anyone’s licence or registration, does not copy or proxy the register, and collects nothing you might look up. Nothing here is an official verification or professional advice. Details above were read from the regulator’s own website on 19 October 2026 and can change; always rely on the official register.