Cryogenic storage of human embryos, gametes and other reproductive material in the UK is a licensed activity governed by UK fertility law. Clinics must be appropriately licensed and must operate their storage programmes in accordance with the conditions of that licence. This includes maintaining documented consent from patients for all stored material, operating robust traceability systems so every stored sample can be identified and located at any time, maintaining validated storage conditions including continuous temperature monitoring and having contingency plans for storage failures. Sample identification is a core part of regulatory compliance — every stored unit must be permanently and unambiguously labelled throughout its storage period. Cryogenic grade markers and labels that survive liquid nitrogen conditions are required for this. Cryolab.co.uk supplies the cryogenic labelling and storage equipment that supports compliant UK IVF storage programmes.