Add: "During Performance Verification, EML is measured on the vertical plane at eye level of the occupant." after "The biological effects of light on humans can be measured in Equivalent Melanopic Lux (EML), a proposed alternate metric that is weighted to the ipRGCs instead of to the cones, which is the case with traditional lux."

Remove: "Light models or light calculations (which may incorporate daylight) show that at least 250 equivalent melanopic lux is present at 75% or more of workstations, measured on the vertical plane facing forward, 1.2 m [4 ft] above finished floor (to stimulate the view of the occupant). This light level is present for at least 4 hours per day for every day of the year". Add: "At 75% or more of workstations, at least 200 equivalent melanopic lux is present, measured on the vertical plane facing forward, 1.2 m [4 ft] above finished floor (to simulate the view of the occupant). This light level may incorporate daylight, and is present for at least the hours between 9:00 AM and 1:00 PM for every day of the year"

In Part 1b, change “For all workstations, electric lights provide…” to “For all workstations, electric lights (which may include task lighting) provide…”