A bill to provide that areas which are urbanized areas on the basis of the 1970 decennial census will not lose their status as urbanized areas under the Urban Mass Transportation Act of 1964 by population reductions on the basis of the 1980 decennial census.

Directs that, until completion of the 1990 decennial census by the Bureau of the Census, the population of any area for purpose of determining whether or not such area is an urbanized area under the Urban Mass Transportation Act of 1964 shall be the population of such area determined on the basis of the 1970 or 1980 decennial census, whichever is greater.