For office buildings, if the vacant space is greater than 10% of the building area use the following guidance as indicated in the USGBC Reduced Occupancy Guidance document. For all other space types, no other changes are required for this credit.

Completely vacant or unused space must be entered separately from fully occupied or partially occupied space.Completely vacant or unused space must be entered with zero workers, zero operation hours (even if the space is conditioned), and zero personal computers.Fully occupied and partially occupied spaces are entered using normal procedures.If occupancy conditions change over time during the performance period, average occupancy levels of all spaces must be kept up to date in Portfolio Manager.