When must animal inspection and testing occur for a USDA health certificate?

The requirement that animal inspection and testing occur at least 24 hours before embarkation is crucial for ensuring the health and safety of the animals being exported and for meeting the import regulations of the destination country. This timeframe allows sufficient opportunity for any necessary health checks, vaccination confirmations, and testing to be conducted. The results can then be documented and included in the required USDA health certificate, providing assurance that the animals are free from diseases and fit for travel.

Conducting the inspection too close to the time of embarkation, as suggested by other choices, may not allow adequate time to resolve any health concerns that could arise, potentially jeopardizing the well-being of the animals and compliance with international regulations. It's important for the exporting process to adhere to these timelines to ensure a smooth and compliant transit of animals to their new locations.