Which of the following is one of the responsibilities of the personal licence holder?

The responsibility of ensuring all cages and pens are labeled is essential for personal license holders, particularly in environments related to animal research or care. Proper labeling helps ensure that animals are correctly identified, reducing the risk of mismanagement and promoting animal welfare standards. Accurate labeling provides vital information about the animals, such as species, care instructions, and any specific conditions related to their use in research or educational settings. This practice contributes to the overall safety and ethical treatment of the animals involved.

In contrast, conducting research in any environment is generally not a responsibility assigned specifically to personal license holders, as certain regulations and protocols must be followed depending on the location and type of research. Providing the personal license to all staff is also not required; the license is typically held by an individual responsible for specific actions rather than a needed credential for the entire team. Similarly, performing surgeries without supervision is not standard practice, as medical procedures involving animals should always be conducted under appropriate oversight to ensure safety and compliance with ethical guidelines.