Certificate of Authorization: Geology, Hydrology, or Soil Science Firms (GHSS)

Now Live: Easier Online License Applications and ​Renewals!

​LicensE is your online, self-guided occupational license application platform. 

Please review the helpful links below:

  • Find step-by-step instruction for license renewal here.
  • Find a list of license renewals available via LicensE in the chart on the LicensE Customer Information page.
  • Find all licenses available via LicensE, plus user guides and other resources, on the LicensE Customer Information page.
  • Anyone applying for an initial license for any of the credentials listed can apply at license.wi.gov.

Our LicensE Application Status Lookup tool makes it easier for employees, and helps academic advisors support students during the license application process. To access the Application Status Lookup tool, you will need the applicant's 10-digit PAR number. An applicant may provide the number to anyone who could support their application. Find more information in our news release about this tool. ​​

​License Information​

Per Wis. Stat. § 440.08(2), the required renewal date for the GHSS Certificate of Authorization credential is 07/31/ each even-numbered year. Should you receive your initial credential in the months leading up to this date, you are still required to renew your license by the statutorily defined date.

The business entity must be organized under Wisconsin state law and be in good standing in the state, or have applied for/obtained a Certificate of Authority from the Department of Financial Institutions.

For more information, see Wis. Stat. § 470.045.

Application for Licensure (Including for a License Expired Five Years or More)

A corporation requesting a certificate of authorization shall submit Form 2404, Application for Certificate of Authorization and fee to the Department, listing names and addresses of all officers and directors, and all individuals in its employment licensed to practice professional geology, professional hydrology or professional soil science in this state who will be in responsible charge of professional geology, professional hydrology or professional soil science in this state.

2404Certificate of Authorization Application Information
2252​Convictions and Pending Charges (if applicable)​

Renewal Information


  • FEE (See Renewal Dates and Fees)
  • APP (Form 2486)

Renewal Method​

2486​Report of Renewal Information f​or Certificate of Authorization-Geology, Hydrology or Soil Science​ Firm
​Convictions and Pending Charges (if applicable for renewal)
RD​AFRenewal Dates and Fees