You do not need to make an appointment with the Ankeny Testing Center to take the Private Chemical Applicators Test. It is on a walk-in basis. I'm including the link to the Ankeny Testing Center hours for your review: https://www.dmacc.edu/testingcenter/Pages/acankeny.aspx. If you prefer to take it at the Southridge Testing Center, you will need to make an appointment by calling 515-287-8720 or 515-287-8700. I'm including the link to the Southridge Testing Center webpage for your review: https://www.dmacc.edu/testingcenter/Pages/acsouthridge.aspx.
NOTE: You will need to bring your login information to the testing center by creating a username and password for the following testing site: https://www.quia.com/web
I'm also including the link for information for the Online Pesticide Applicator Certification test. There is also a practice exam located on this link. https://www.iowaagriculture.gov/Pesticide/Onlinepesticidetesting.asp
If you click on "General Information and Instructions Concerning the Exam" it provides you with a list of the information you will need prior to the exam and directions and hours for the testing centers. On page 4, lists the contact information for any questions you may have regarding the test.
Preparation for the exams requires review of the certification manuals available through Iowa State University Extension Publications Distribution Center or your local County Extension Office. https://www.extension.iastate.edu/psep/Pubs.html
Make sure you know the correct certification categories you will need for the type of pesticides you apply. A detailed description of the certification categories may be found at https://www.iowaagriculture.gov/Pesticide/DMACC/CertificationCategoriesDescription.pdf