Which of the following is NOT a duty of the state board?

The correct answer is based on the specific responsibilities typically assigned to a state board in the context of cosmetology regulations. State boards are often tasked with ensuring public safety and welfare through various oversight functions, and while they do play a role in regulating the profession, the issuance of product licenses is generally not one of those duties.

In state cosmetology frameworks, the board's primary responsibilities include inspecting salons to ensure compliance with safety and sanitation standards, enforcing violation penalties against those who do not adhere to established laws, and establishing licensing standards for practitioners to ensure that they meet specific educational and training requirements before receiving their licenses.

Product licensing usually falls under a different jurisdiction, often involving specialized departments or agencies that handle the regulation of cosmetics and personal care products, focusing on their safety, efficacy, and compliance with health regulations.

Thus, the duty to issue product licenses is not typically assigned to the state board of cosmetology, making it the correct choice for the task that is NOT a duty of the state board.