If you’re interested in earning a certificate of completion, you may take this test. It's entirely optional—there’s no pressure to take it if your goal is simply to learn the material. If you do choose to pursue the certificate, you’ll need to pass it with a score of 80% or higher. It's open book and you’re welcome to retake it as many times as needed.

Please note that this course is designed specifically for homeowners and is not a substitute for professional certification. If you’re looking for a more formal credential or professional track, I recommend exploring programs from organizations like the Building Biology Institute, EMU Passive, or PHIUS.