Remove: "452 cm² [70 in²]". Add: "507 cm² [79 in²]"

Remove: "240 mL [8 oz]". Add "473 mL [16 oz]"

For Part 1f, add: "or seafood" after "animal"

Add: "main course" after "...at least one"

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To provide alternative food choices to individuals with food restrictions or allergies.'

The Japanese Agricultural Standards (JAS) organic system has been accepted as an equivalent for the Federally Certified Organic program of Feature 49 Part 1a and 2b for projects in Japan.

Organizations approved by the Australian Department of Agriculture as organic certifying organizations against the National Standard for Organic and Bio-Dynamic Produce are accepted as an equivalent for the Federally Certified Organic program of Feature 49 Part 1a and 2b.

Soil Association Organic Standards Farming and Growing v17.4 August 2016 has been accepted as an alternative to Federally Certified Organic for the requirements of Feature 49, Part 2. Note that this equivalency applies only to projects in the United Kingdom.

"India Organic" certification by the APEDA (Agricultural and Processed Products Export Development Authority) per the National Programme for Organic Production (NPOP) standards has been accepted as an alternative for the requirements of Feature 49 Part 1.

Remove: "If meat, egg or dairy products are sold or distributed on the premises on a daily basis by (or under contract with) the project owner, they meet the following criteria for the humane treatment of livestock". Add: ""If meat, egg or dairy products are sold or provided on the premises on a daily basis by (or under contract with) the project owner, they meet the following criteria for the humane treatment of livestock"

Remove: "Produce is sold or distributed on the premises on a daily basis by (or under contract with) the project owner and it meets the following criteria". Add: "Produce is sold or provided on the premises on a daily basis by (or under contract with) the project owner that meets the following criteria"

Change “All produce sold or distributed on the premises on a daily basis by (or under contract with) the project owner meets the following criteria:” to “Produce is sold or distributed on the premises on a daily basis by (or under contract with) the project owner and it meets the following criteria:”

Add: "one of" before "the following"

Add Owner Letter of Assurance as required documentation, remove Architect Letter of Assurance.

Remove:"allocated". Add: "accessible and located"

Add: "with food-bearing plants" after "A greenhouse"

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve access to fresh produce by providing space, infrastructure and tools for on-site food production.'

In Appendix I, remove: "Extent of Developer Buildout with Capacity for Tenant Achievement". Add: "Entire Building"

In Part 1 and Part 2, remove: "employees". Add: "occupants"

In part description, Remove: "employees". Add: "occupants"

Remove: "b. Are located within 60 m [200 ft] of at least 90% of all occupants"

In Part 2a, change “Refrigerator, microwave and sink” to “Refrigerator, device for reheating food (such as microwave or toaster oven) and sink”

In 17 Jan, 2017 EP, remove: "Note that this...China GB50034-2013 to ensure compliance."

For Part 1a, remove: "plane, 0.76 m [30 inches] above finished floor". Add: "work plane"

Projects may meet requirements outlined in Part 1b by zoning the space into banks according to proximity to windows or corresponding to location of departments even if the areas differ from those prescribed in Part 1b.

Remove: "Brightness contract between main rooms and ancillary spaces, such as corridors and stairwells, if present". Add: "Maximum brightness contrasts between main rooms and ancillary spaces, such as corridors and stairwells, if present. For example, projects may establish that, while still maintaining lighting variety, a main room cannot exhibit 10 times greater or lesser luminance than an ancillary space"

Remove: "Brightness contrasts between task surfaces and remote, non-adjacent surfaces in the same room". Add: "Brightness contrasts between task surfaces and remote, non-adjacent surfaces in the same room. For example, projects may establish that, while still maintaining lighting variety, a surface cannot exhibit 10 times greater or lesser luminance than another remote surface in the same room"

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To support visual acuity by setting a threshold for adequate light levels and requiring luminance to be balanced within and across indoor spaces.'

Add professional narrative as required documentation, remove Architect Letter of Assurance, remove on-site spot measurements.

For Part 2b, remove: "Lights" before "provide not more than…". Add: "During the nighttime, lights"

For Part 4b, remove: "elementary school, middle school, or high school". Add: "primary and secondary school"

For Part 1b, remove: "(which may include task lighting)" after "electric lights"

For Part 1b, add: "facing forward (to simulate the view of the occupant)" after "vertical plane"

Remove: "At least one of the following requirements is met". Add: " Light models or light calculations demonstrate that at least one of the following requirements is met"

Remove: " For all workstations, electric lights (which may include task lighting) provide maintained illuminance on the vertical plane of equivalent melanopic lux, greater than or equal to the lux recommendations in the Vertical (Ev) Targets for the 25-65 category in Table B1 of IES-ANSI RP-1-12. For example, Reception Desks are provided with 150 equivalent melanopic lux from the electric lights". Add: "For all workstations, electric lights (which may include task lighting) provide maintained illuminance on the vertical plane of 150 equivalent melanopic lux or greater. Projects may use the lux recommendations in the Vertical (Ev) Targets for the 25-65 category in Table B1 of IES-ANSI RP-1-12 in place of 150"

To increase the delivered Equivalent Melanopic Lux and fulfill Feature 54, projects may provide task or other supplemental lighting at workstations upon request. Projects choosing to pursue this option must demonstrate that they have sufficient funding to procure task or other supplemental lighting for at least 75% of the total workstations within the WELL boundary. Projects must also provide comprehensive education to employees that focuses on the benefits of task or other supplemental lighting and circadian lighting overall.
Note that during the Performance Verification, the project must provide a sample of these task or other supplemental lights and coordinate the placement and the power source at each applicable workstation prior to the lighting measurements. A sufficient number of task or other supplemental lights should be provided so as to not impede the site visit schedule.

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

For Part 2, remove: "requirement". Add: "requirements"

For Part 2, add: "b. Workstations achieve a UGR of 19 (or less)."

Remove: "Lamps with the following luminance in regularly occupied spaces are shielded by the angles listed below or greater". Add: "The following shielding angles (⍺ = 90 - cutoff angle) must be observed for lamps in regularly occupied spaces with luminance values in the ranges specified"

Remove: "50,000 to 500,000 cd/m²: 20°". Add: "⍺: 20° for 50,000 to 500,000 cd/m²"

Remove: "500,000 cd/m² and above: 30°". Add: "⍺: 30° for 500,000 cd/m² and above"

The Unified Glare Rating (UGR) value may be used in lieu of the requirements of Feature 55 as written. Specifically, the recommendations in EN 12464-1 may be used in place of Part 1.

Change “At workstations and desks, the following requirement is met:” to “At workstations, desks and other seating areas, the following requirement is met:”

In the Feature description, remove the second paragraph. Replace with the following text:
Intent: 'To avoid glare from the sun by blocking or reflecting direct sunlight away from occupants.'

In Part 2a, change “Interior window shading or blinds that are controllable by the occupants or set on a timer” to “Interior window shading or blinds that are controllable by the occupants or set to automatically prevent glare.”