24. The employer must notify the workers, by means of a sign, of the presence of a hazardous product in fugitive emissions, as well as in intermediary products undergoing reactions in a reaction vessel or a process vessel. The same applies in the case of hazardous waste or a hazardous product in transit.
The sign must also set out the precautions to take when handling and storing hazardous products, hazardous waste, and hazardous products in transit, and the measures to take in cases of exposure to such products.