What must personnel do before entering a regulated area while working with asbestos?

Before entering a regulated area while working with asbestos, personnel must wear required personal protective equipment (PPE) and undergo proper training. This is crucial because asbestos presents significant health risks, including serious respiratory conditions and long-term diseases such as asbestosis and mesothelioma. The proper training ensures that workers are informed about the hazards associated with asbestos, the correct handling procedures, and emergency protocols. Wearing PPE is essential to minimize exposure to airborne asbestos fibers, protecting the health and safety of the workers.

The other options do not address the immediate and critical safety concerns associated with asbestos work. Reading an industry magazine does not provide the necessary training or protective measures. Completing a general safety quiz, while potentially useful as a broader safety measure, does not specifically relate to the unique risks of asbestos. Obtaining a visitor's pass is administrative and does not contribute to the preparedness and safety required for personnel who will be working in a potentially hazardous environment. Thus, wearing required PPE and having proper training is the most essential step before entering a regulated area.