Which of the following is a correct statement about student interns in a salon?

The correct statement regarding student interns in a salon is that they require a signed training agreement. This agreement is essential as it outlines the terms of the intern's training, including the responsibilities of both the intern and the salon. This documentation ensures that the intern is receiving the appropriate training and is adhering to the guidelines set forth by educational programs and regulatory bodies. Such agreements also help clarify the expectations regarding the scope of work the intern will perform, ensuring that both the intern and the salon are protected legally.

Having a signed training agreement is a common practice in many states, as it establishes a formal understanding of the intern's status, their learning objectives, and how their work will be assessed. It is vital for ensuring compliance with state regulations and providing a clear framework for the educational experience.

In contrast, the other statements are inaccurate as they do not align with the standard practices regarding student interns. Interns typically cannot perform any service without supervision, as this could pose risks to clients and contradict education regulations. Additionally, while some internships may involve fees, it is not a standard requirement. Finally, all salon workers, including student interns, must adhere to sanitary regulations to ensure a safe and hygienic environment for all clients and staff.