Book excerpt: Seed storage behaviour. Types mof seed collections. Conditions for long-term storage. Conditions for medium-term storage. Drying seed and determining moisture content. Hemetic containers. The size of acessions and the volume of the coldroom. Eletricity supply and maintaining gene bank services in emergency. Temporary or alternative seed storage facilities. Monitoring gene bank environments. Air-lock. Ancillary facilities. Safety precautions. Selecktion of site.