WMN0105 Minnesota CSW BMP Installer ReCertificationYou have 5 consecutive (calendar) days from purchase to complete this course. Do not register until you are ready to begin. This on demand MN CSW BMP Installer Recertification course is 8 hours long and provides 8 PDHs upon completion. Must be within 6 months of expiration of current certificate to qualify to take this course and verification of eligibility must be completed before registering. Once earned, certificates are valid for 3 years from date