Final answer:
Cosmetologists typically need to renew their licenses biennially or annually depending on state regulations; this involves a renewal fee and sometimes continuing education credits. The specific renewal date must be checked with the state's cosmetology board.
Step-by-step explanation:
The question relates to the professional licensing requirements for cosmetologists. It is typically state regulatory boards that set the specific renewal dates and fees for cosmetology licenses. These details can vary by state, but generally, a cosmetologist must renew his/her license on or before a certain date every two years or possibly annually, depending on the state's regulations. The renewal often involves a fee, continuing education credits, and sometimes proof of ongoing practice. To find the exact renewal date and fee, one would need to consult their state's cosmetology board or regulatory body. It is important for cosmetologists to stay informed of their license renewal deadlines to avoid any interruption in their ability to legally practice.