AP Environmental Science (or APES) is a College Board supported class that may be offered in high schools. Students may take the AP Environmental Science Exam at the end of the course and may earn college credit depending on their performance. Students are not required to take an APES in order to take the exam. There are many correlations between APES and Envirothon. Check out the college board website for more information.

https://apstudents.collegeboard.org/courses/ap-environmental-science