Where and when are the exams given?
When you are ready to take the exam(s), check the PaPlants Certification Exam Search page for dates and locations. The exams are given in each Pennsylvania Department of Agriculture (PDA) Region at least once a month (you can go to any region to take an exam, not just the one you live or work in.)
You need to register in advance for most exam dates. which can be done on the above website once you select the exam you are going to attend. At this time, payment cannot be made online.
If you do not want to register online, you can call the PDA regional office and register to take the exam.

