Analysis of information sources in references of the Wikipedia article "Megaproject" in English language version.
Prior to the enactment of SAFETEA-LU in August 2005, projects with over $1 billion in construction costs were designated as "Mega Projects". SAFETEA-LU has lowered the monetary threshold from an estimated total cost of $1 billion to $500 million or greater, and the term "Mega Project" has since been eliminated and replaced with the term "Major Project."