Fire water tanks offer an alternative to municipally supplied water for fire suppression. Fire water tank water can be directed to interior sprinkler systems and used in the advent of a building fire. Fire suppression can go beyond indoor sprinkler systems to protect buildings from fires. Another alternative is to collect and store water in tanks for fire hydrants. Using a designed fire suppression tank prevents the reliance on potable water to fight fires and can reduce connection costs, especially in areas outside the main water distribution grid. In regions where water is either scarce or not connected to a municipal supply, fire water tanks can provide the critical water needed for fire protection. In most cases, the requirements of fire suppression sprinkler system design are dictated by various Building Codes. Chiefly in the United States, the National Fire Protection Association – Sprinkler Systems, commonly called NFPA, is the standard for design and code approval. In rural areas or in fast growth urban areas, public water infrastructure is often insufficient to meet the needs of firefighting efforts. Fire trucks dispatched to a fire can only hold so much water, and there may or may not be static natural water sources to draw from such as lakes and ponds; to solve this problem, storage tanks can be installed at strategic locations in order to aid in fire suppression in the event of a fire.