What are "No Smoking" signs required to notify individuals about?

The correct answer is focused on the non-smoking policy, which is crucial for maintaining safety and compliance with health regulations at construction sites. "No Smoking" signs serve as a clear reminder to all individuals on-site that smoking is prohibited in those areas. This policy is particularly important in environments where flammable materials may be present, as smoking can pose a significant fire hazard.

By clearly displaying these signs, it helps to ensure that everyone understands the importance of maintaining a smoke-free environment, thereby protecting the health of workers and reducing the risk of accidental fires. The presence of such signs reinforces the commitment to safety and adherence to local regulations governing smoking and fire hazards, contributing to a safer construction site atmosphere.