The general industry standard, 1910.106, Flammable Liquids, is complex and covers many work environments and situations. This fact sheet covers only the basic storage, transfer, and transport requirements. Rules for heavier industrial applications; underground storage facilities; and for building tanks, containers, and other specialized items are in the standard. All references in this fact sheet are to 1910.106 unless stated otherwise. Flammable liquids are divided into categories according to their flashpoints. The following table shows the categories for flammable liquids: