In the United States, FPSF technology has been used in engineered structures and is common practice for residential construction on crawlspace foundations in areas of Alaska. 

     However, the major model building codes do not specifically recognize the FPSFs equivalence to footings placed below a prescribed frost depth. Recent amendments to the CABO One- and Two-Family Dwelling Code and the BOCA National Building Code recognize performance-based criteria for frost protection but do not specifically mention FPSFs. Consequently, widespread use of the technology in residential buildings has not yet occurred. Efforts are underway to obtain U.S. building code approval.

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