When can a worker access a scaffold?

Accessing a scaffold is focused on ensuring the safety of workers. A scaffold must be tagged as safe before workers are allowed to use it. This tagging is typically part of a safety protocol that involves inspection and approval by a qualified individual. The tag signifies that the scaffold meets all safety standards and is structurally sound for use, thus minimizing the risk of accidents or injuries.

The other choices do not meet the necessary safety criteria. Merely painting a scaffold does not guarantee its stability or safety for workers. Allowing access at any time disregards crucial checks that should be in place. Assembling a scaffold alone does not ensure it is safe; inspections are vital to confirm that it has been put together correctly and meets safety regulations. Therefore, the requirement for a scaffold to be tagged as safe is an essential part of workplace safety protocols in construction environments.