Question 1681 Deck Safety

The correct answer is A) 6 months. A De-Rat certificate, which certifies that a ship has been fumigated and is free of rodents, is typically valid for a period of 6 months. This is in accordance with the international regulations set forth by the International Convention for the Safety of Life at Sea (SOLAS) and the World Health Organization (WHO). The 6-month validity period ensures that rodent control measures are regularly monitored and maintained on ships to prevent the spread of diseases. The other options are incorrect because: B) 1 year is too long for a De-Rat certificate, C) a De-Rat certificate is not issued for a specific voyage, and D) 2 years is also too long for the validity period of a De-Rat certificate.