June 2012: NAREIT migrated its Leader in the Light award program framework into the Global Real Estate Sustainability Benchmark (GRESB) platform. An important element of the migration into GRESB included integrating into the GRESB platform a set of optional, supplemental "Leader in the Light" questions that, if answered by a NAREIT corporate member, enters the member into the Leader in the Light award competition.

Nareit- LITL
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