What action is prohibited for barbershops under the specified regulations?

Under the specified regulations, barbershops are prohibited from advertising in certain ways to ensure that all promotional efforts are consistent with ethical standards and do not mislead the public. Excessive or misleading advertising can lead to complaints or disciplinary action against a barber or barbershop. Regulations often dictate how barbers can promote their services, ensuring transparency, honesty, and adherence to professional standards that protect consumers.

The other actions listed, such as altering the layout, employing new barbers, and changing suppliers, are typically permissible as these do not infringe on client safety or health standards set forth by regulatory boards. These actions can be integral to the business operations and the overall management of a barbershop, allowing for growth and adaptation in the marketplace. Understanding these boundaries helps barbers comply with state regulations while operating their businesses effectively.