When is it necessary to post plainly-visible warning signs before starting any enclosed space fumigation?

Posting plainly-visible warning signs at all entrances to the space is vital for safety during enclosed space fumigation. This practice serves multiple important purposes. First and foremost, it ensures that anyone approaching the area is adequately informed of the potential hazards associated with fumigation, such as the presence of toxic gases. By placing signs at all entrances, not only do you comply with safety regulations, but you also maximize visibility to anyone who might inadvertently enter the area, including workers, emergency personnel, or the general public.

This comprehensive signage approach aligns with the regulatory requirements that prioritize health and safety in environments where hazardous substances may be present. The goal is to prevent unintentional exposure or accidents, making it critical to maintain clear communication regarding the status of the area being treated. Other options may not provide the same level of warning or awareness needed to ensure safety for everyone involved.