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 should apply by mail.

Apply in person or by mail

Complete, print, and sign your application and then drop off or 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, Rm 137
Madison WI 53703-3445

Asbestos Application Forms

Lead Application Forms


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Last Revised: March 23, 2018