Incentives hope to spur reuse of underutilized and abandoned
properties.
The term "brownfield" emerged in
the mid-20th century when urban decentralization and
deindustrialization left behind large numbers of underused or
abandoned properties. These properties included former industrial
sites and areas near potential sources of contamination. Even if a
brownfield property did not need remediation because there was
little or no actual contamination, the associated risk deterred
investment.
When Congress passed the 1980
Comprehensive Environmental Response, Compensation, and Liability
Act (CERCLA) and created the Superfund program to
clean up severely contaminated sites, it unintentionally
exacerbated underinvestment in brownfields. CERCLA established
strict, retroactive liability for all owners or operators of
contaminated property, regardless of when or how contamination had
occurred. This heightened the risk and cost of acquiring an
interest in potentially