Wisconsin Asbestos and Lead Database Online (WALDO)

Apply online using WALDO!

Apply for certification online

You can apply for certification using WALDO, the Wisconsin Asbestos and Lead Database Online.

Although it's possible to use a smartphone or tablet to apply online, we recommend using a computer. Applicants with out-of-state training or fee exemptions must apply by mail with supporting documentation.

Apply by mail

Complete, print, and sign your application. Then mail it to the address below with your check or money order. Cash is not accepted.

Department of Health Services
Lead and Asbestos Section
1 W Wilson St., Room 137
Madison WI 53703-3445

Expedited service

Expedited service is available for an additional $25 fee. This service is only available for applications that are mailed to the address above.


Asbestos Application Forms

Lead Application Forms


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Last Revised: September 30, 2020