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Local Law 84 (LL84) requires large building owners to annually measure their energy and water consumption in a process called benchmarking. The owners are required to enter their annual energy and water use in the U.S. Environmental Protection Agency’s (EPA) online tool, ENERGY STAR Portfolio Manager, and use the tool to submit data to the city. Building owners are subject to a penalty if usage data isn’t submitted by May 1 every year.
