The Environment Agency have released the guidance docs via data.gov.uk but redirecting you to geostore.com where they specifically state that the data is not available for commercial use.
Isn't one of the provisions of Open Data that the data MUST be made available for both commercial and non-commercial users?
Could someone clarify what status the Environment Agency Flood Zones data has? Is it Open Government Data or not? If it's not, why is the agency listing it on data.gov.uk?