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Thousands of impact resistant windows, doors, and skylights have been tested and certified since Hurricane Andrew ravaged South Florida in 1992, causing billions in property damage. As a consequence of the damage inflicted by Hurricane Andrew, more stringent standards for window systems were adopted. The requirements put into place the following year called for testing of window and door systems and changes to any component--including framing materials, glazing, sealants, weather stripping, hardware and anchors typically necessitated retesting and recertification. This document discusses the many considerations for hurricane product substitution. The Technical Services Division of the National Glass Association (NGA) has produced this Glass Technical Paper solely for informational purposes. This Paper was developed by dedicated member volunteers and subject matter experts. The original version of this document was published in 2009. This version of the document was updated and published in February 2024.