Which of the following is a requirement for a mobile shop?

Maintaining cleanliness and hygiene is a fundamental requirement for a mobile shop, as it directly impacts client safety and satisfaction. In the context of a mobile shop, which operates in various locations, adherence to cleanliness standards is crucial to prevent the spread of infections and to create a welcoming environment for clients. This requirement ensures that all tools, equipment, and the overall workspace are sanitized and organized, reflecting professionalism and care for client well-being.

A permanent address, while important for many businesses, is not typically required for mobile shops as they operate from different locations. The necessity for all staff to have an online certification may pertain to specific training programs, but it is more about the individual qualifications rather than a mobile shop's operational requirements. Lastly, a licensed dual shop permit pertains to the legal operation of establishments offering various services under one roof, which does not directly imply a requirement for mobile operations.