In multi-occupant workspaces the credit requires that controls are "adjustable to suit group activities and allow flexibility for different uses." It used to be that occupancy sensors with manual overrides plus an on-off switch would count, but that's not the case anymore. Project teams are now being held to demonstrating at least two levels of control in these spaces. Compliant scenarios could include having two or more lighting zones separately controlled by on-off switches, an on-off switch combined with blinds on windows, or an on-off switch with a dimmer.

Workstations in large open rooms are considered individual, not group, multi-occupant workspaces.

Private offices with at least one on-off switch comply.  

To meet credit requirements, task lighting does not need to be hardwired. Plug-in lamps or task lighting built into cubicles or office furniture is the most likely method of compliance.

Exclude from your credit calculations any spaces used for storage, circulation, or bathrooms, as these are not considered “regularly occupied.”

Include in your credit calculations any spaces in which a person is likely to cumulatively spend a large part of the workday. These are considered “regularly occupied.” 

Doing an early inventory has some advantages, although you may do it anytime, before or during the project’s performance period. If you document existing lighting controls and then assess opportunities for improvement before or early in project’s 12-month performance period for recording energy data, you can help the project's energy performance as measured for EAp2 and EAc1.

The inventory can be performed in tandem with similar space-by-space audits required by other LEED credits, such as an energy walk-through audit (EAp1), an IAQ audit (IEQc1.1) a green cleaning audit (IEQc3), and a daylight and views study of the building (IEQc2.4).

Perform an inventory assessing the number, type, and location of current lighting controls. See the Documentation Toolkit for a spreadsheet you can use, along with an example inventory.

Projects that have earned the credit related to lighting control under LEED for New Construction or LEED for Schools can follow the D+C Streamlined Path for documenting this credit. You must submit a copy of the official LEED scorecard and confirm that the design and construction elements that contributed to the previously earned credit are either still in place or explain that minor changes do not put into question the potential achievement of this credit. If no major changes have occurred, no further action is necessary to achieve this credit.