Final answer:
Shampoo bowls and manicure tables must be disinfected before each client use, as this is a key procedure to ensure hygiene and prevent disease transmission in compliance with health regulations.
Step-by-step explanation:
Shampoo bowls and manicure tables shall be disinfected before use on each client. This measure is crucial for maintaining a hygienic environment and preventing the spread of infectious diseases. It's a standard practice in the beauty and personal care industry to clean and disinfect all tools and surfaces before each appointment, safeguarding the health of both clients and employees. Not only is it a best practice, but in many areas, it's also mandated by health regulations.