Proper handling of the transport tank is essential to ensure the safety and integrity of the biological material it carries, such as vitrified oocytes, embryos, or sperm samples. When receiving the tank, inspect the outer box and container immediately for any signs of damage or mishandling. Open the package carefully, verify the contents against the packing list, and ensure that the samples are correctly labeled and securely stored inside the cryo-tank. If applicable, check the internal temperature or confirm the presence of sufficient liquid nitrogen to maintain the required cryogenic conditions. Always keep the tank in an upright position in a secure and stable area until it is ready to be used or transferred. Avoid tilting, shaking, or exposing the tank to direct sunlight or heat sources, and never attempt to open the internal canister unless properly trained. Use appropriate safety equipment when handling the tank to prevent injury from cryogenic exposure. Once the contents have been used or transferred, ensure that the tank is empty before beginning the return process. Repack the tank in its original protective materials, including any documentation or foam padding, and seal the shipping box securely. Use the provided prepaid return label and arrange pickup with the designated courier service as soon as possible. It’s important to notify the provider that the tank is ready for return to ensure timely collection and proper coordination. These instructions are designed to protect the samples, guarantee the integrity of the cryogenic environment, and support a smooth logistical process. If at any point you have questions or encounter issues, contact the provider’s logistics or laboratory team for assistance.Instructions for Receiving and Returning the Tank. Following this protocol ensures the tank’s safe return and continued reliability in transporting sensitive reproductive materials.