To amend the National Flood Insurance Act of 1968 to extend the program of flood insurance for structures on land subject to imminent collapse or subsidence.

[AI summary unavailable — showing source text] Amends the National Flood Insurance Act of 1968 to extend the program of flood insurance for structures on land subject to imminent collapse or subsidence through September 30, 1992 (currently, September 30, 1989). Expands the area on the southern shore of Long Island, New York, to which such program shall not apply.…