What is not required by Animal Welfare Regulations for transport cages?

The aspect that is not required by Animal Welfare Regulations for transport cages is having an elevated screened bottom to keep animals off the floor of the cage. The regulations focus primarily on ensuring that the animals are transported safely and in a manner that minimizes stress and injury. While having hand holds for easy lifting, a clear marking indicating “Live Animals,” and designs that prevent any part of the animal's body from extending beyond the enclosure are all specified requirements, the regulation does not mandate a specific design element like an elevated bottom.

This approach underscores the necessity of allowing flexibility in designs, as there are various types of transport cages that can meet safety and welfare standards without requiring a screened bottom. The focus is more on the overall integrity and safety of the transportation experience rather than dictating specific design features that could vary widely based on the type of animals being transported or their individual needs.