Please read: Within 72 hours of receiving your online registration and payment, you will receive an email from your instructor with login information. Continuing education must be completed before the expiration date on your license. For plumbing, electrical and HVAC, each education course must be three hours in length. For gas-fitters the course must be one hour. Piedmont Virginia Community College's trades renewal continuing education courses are approved by the Virginia Board for Contractors. PVCC's Office of Workforce Services will electronically transmit course completion data to the Department of Professional and Occupational Regulation (DPOR).