Can this credit be achieved if the remediation occurred outside of the LEED project scope? My understanding is that this was not allowed for the Brownfield Redevelopment credit under LEED v3. However, under v4 the credit language states that,

"If the project is located on a site that has already been completely assessed and remediated, the results of that assessment and remediation may be used toward achievement of this option if complete documentation is provided."

Is this a new development in LEED v4? The project site that I am currently working on was remediated of an oil spill by the previous owner prior to the sale of the land. Can we claim credit for this?