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Local Law 84 (LL84) requires owners of large buildings to annually measure their energy and water consumption in a process called benchmarking. LL84 standardizes this process by requiring building owners 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.
