Add Contractor Letters of Assurance as required documentation.

Multifamily residential projects may achieve Feature 5, Part 1 by providing subsidized rental of purification systems to tenants via a discounted rental rate of the dwelling unit. Project teams must demonstrate that the discounted rent is lower than the market value of the dwelling unit and that the difference will cover the rental of air purification devices. Tenants are required to sign an agreement for purchasing or leasing air purifier(s) in order to receive the discounted rate.

Remove: "Rack space and fan capacity is in place for future carbon filters or combination particle/carbon filters." Add: "Rack space is available and rack location identified for future implementation of carbon filters or combination particle/carbon filters."

In a project with a split-system air conditioning unit that does not allow for accommodating MERV 13 filters, the following measures may be implemented as an alternative. For Parts 1 and 2a of this feature, a standalone air purifier with carbon filter and HEPA filter performing equivalent to MERV 17-20 may be used in accordance with manufacturer’s guidelines. Installation of the HEPA filters may not be conditional based on the criteria in Part 2b. A sufficient quantity of stand-alone air purifiers and carbon filters and HEPA filters must be provided in accordance with the manufacturers recommended area coverage. Provide a policy document to confirm Part 3 of this Feature, and a policy document that confirms that the project owner will maintain and replace the filters and filter units located within the project as per manufacturer specifications.

Add "or combination particle/carbon filters." to the end of Part 1a. Part 1a now reads "Rack space and fan capacity is in place for future carbon filters or combination particle/carbon filters."

Multifamily Residential projects may use wall-mounted HEPA filters to meet the requirements of Feature 5 Parts 1 and 2, provided the project contains a sufficient quantity of wall mounted HEPA filters in accordance with the manufacturer’s recommended area coverage. In addition, a policy document must be provided confirming Part 3 of the Feature and that the Owner will maintain the filters for the units that are located in both common and private areas.

As an alternative to the quarterly inspection of cooling coils required in Feature 6, Part 1b, projects may sample 25% of the project’s cooling coils per quarter (representative of all building orientations and equal to 100% of cooling coils per year) through either visual inspection or performance inspection tests. Policy documentation must be provided that includes a detailed description of the inspection protocols for cooling coils and drain pans, and confirming that cleaning will be provided if mold is found before the annual inspection. The inspection and analyses must be performed in accordance with ISO 16000-18 and ISO 16000-17.
Note that dated photos must still be provided to IWBI on a yearly basis.

Add annotated operations schedule OR MEP drawing as required documentation, remove MEP Letter of Assurance, remove on-site spot checks.

Add: "newly installed" after "all"

Add: "occurring within one year prior to Performance Verification" after "during construction"

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize the introduction of construction-related pollutants into indoor air and protect building products from degradation.'

Change title of Part 3 from "VOC Absorption Management" to "Moisture Absorption Management"

In Part 3a, change “A secure area is designated to store and protect…” to “A separate area is designated to store and protect…”.

This option is applicable only for buildings whose entrance lobby is not a regularly occupied space or to projects where the building entrance is outside the project boundary.

In 24 Oct, 2016 AAP, remove: "Where projects are restricted from using an entry vestibule or revolving door (for e.g. projects in the Philippines following the National Building Code, which prohibits revolving doors or vestibules for designated exits), they". Add: "Projects"

In part description, add: ", including doors with pedestrian traffic only to/from terraces or patios (no traffic to/from surrounding grounds), " after "…occupant shoes at all regularly used entrance(s)"

For Part 3a, remove: "locker room". Add: "changing room"

For Part 1b, add: "(sum of indoor and outdoor length)" after "primary direction of travel"

Remove: "Permanent" from title of Part name.

Projects may use a permanent entryway system 3 meters long, and an air curtain to create an air seal. There are several specifications for this path:

1. The air curtain must have a minimum velocity of not less than 2 meters per second (6.56 feet per second) at the floor, have been tested in accordance with ANSI/AMCA 220, and must be installed in accordance with manufacturer's instructions. It must also be commissioned prior to occupancy by a qualified agent.
2. An indoor pressure sensor must be installed in the building lobby that is capable of providing automatic readings at least once an hour.
3. The project team must specify target pressurization levels for these locations when the building is occupied. These levels have to keep air from entering the building more than the standard amount, allow occupants to open and close doors easily and not cause moisture problems due to exfiltration. Projects must provide documentation of these targeted levels and ensure they achieve the objectives outlines above.

To document this alternative adherence path, the project team must provide the following in the Documentation Submission:

• Indoor pressure sensor readings in accordance with ANSI/ AMCA 220 including exhaust and supply sequences from a single day
• Mechanical drawings of the project space and manufacturer documentation of the air curtain equipment

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize the introduction of pollutants into indoor air at building entrances.'

Replace the first sentence with the following: "One of the following is in place to slow the movement of air from outdoors to indoors within mechanically ventilated main building entrances:"

The Malaysian SIRIM QAS certification scheme for cleaning products has been accepted as an alternative for the requirements of Feature 09 Part 1b.

Where securing products that meet Hazard Statement requirements set in Table A4 is problematic, the project can submit documentation demonstrating an attempt has been made, including a petition or formal request filed with at minimum three manufacturers/labels (per product category). The project is then permitted instead to use products that meet Type 1 eco-labeling program, as defined by ISO 14024:H929:1999 and developed by a member of the Global Ecolabelling Network.

The Global GreenTag Standard v4.0 and PhD Methodology are not accepted as alternatives for the requirements of Feature 09 Part 1 because the requirements of GreenTag do not match those of these WELL features.

Vikings by Rotulo Ecologico ABNT is not approved as an acceptable alternative to the requirements of Feature 09 Part 1. Equivalencies are a comparison of different codes and regulations and are appropriate for projects that wish to propose an equivalent standard, code, or practice to meet the feature intent.

Remove: "A cleaning plan is created which includes following requirements". Add: "A cleaning plan is created that includes"

Remove: "b. A list of approved product seals with which all cleaning products must comply (See Table A4 in Appendix C)". Add: "b. A list of approved product seals with which all cleaning, disinfection and hand hygiene products must comply in accordance with the Cleaning, Disinfection and Hand Hygiene Product section in Table A4 in Appendix C."

Remove: "d. A cleaning schedule that specifies the extent and frequency that a surface is cleaned, sanitized, or disinfected in accordance with the Disinfection and Sanitization and Entryway Maintenance sections of Table A4 in Appendix C". Add: "d. A cleaning schedule that specifies the extent and frequency of cleaning, including the Entryway Maintenance section of Table A4 in Appendix C"

Projects registered as New and Existing Interiors that can demonstrate that aspects of the base building operation is outside of their control are not required to achieve Feature 09, Part 1: Cleaning Plan for Occupied Spaces.

The A.I.S.E. Charter for Sustainable Cleaning has been accepted as an alternative for Requirement (d) of Feature 9 Part 1.
Note that Multifamily Residential Pilot projects are required to meet GS-49 for residential cleaning services rather than GS-42.

SCS has been approved as an acceptable alternative for Feature 9 Part 1, Requirement d.

Change Part 1b text to: 'A cleaning schedule that specifies the extent and frequency that a surface is cleaned, sanitized or disinfected in accordance with the Disinfection and Sanitization and Entryway Maintenance sections of Table A4 in Appendix C.'

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to pathogens, allergens, and harmful cleaning chemicals.'

For Part 1b, add “and entryway walk off mats (if applicable)” after “each high-touch and low-touch surface” in the first sentence.

Hong Kong's Pesticides Ordinance (Cap. 133) has not been accepted as an equivalent for the San Francisco Environment Code Integrated Pest Management (IPM) program of Feature 10 Part 1.

The San Francisco Environment Code IPM program requires least toxic pesticides to have warnings about toxicity to fish or other aquatic life, birds, wildlife, or honeybees. The proposed ordinance only states safety for warm blooded mammals.

The European Regulations 1107/2009/EC and 528/2012/EU have been accepted as alternatives for the requirements of Feature 10 Part 1b.

For Part 1b, remove: "hazard-ranked". Add: "with a Hazard Tier ranking of 3 (least hazardous)" after "Use of pesticides"

Biopesticides registered with the Central Insecticides Board and Registration Committee (CIBRC) of India have been accepted as an alternative for the requirements of Feature 10 Part 1b.

Biopesticides registered with the Central Insecticides Board and Registration Committee (CIBRC) of India has been accepted as an alternative for the requirements of Feature 10 Part 1b.

Remove: "Pestcide and herbicide use is minimized by creating a use plan based on Chapter 3 of the San Francisco Environment Code Integrated Pest Management (IPM) program". Add: "The creation of a pest management plan in place of pesticide/herbicide use, based on Chapter 3 of the San Francisco Environment Code Integrated Pest Management (IPM) program"

The UK Plant Protection Products (Sustainable Use) Regulations 2012 have been approved for F10, Part 1, Requirement a. Adopting organic farming principles described in Council Regulation (EC) No 834/2007 of 28 June 2007 has been approved as an acceptable method to comply with F10 Part 1, Requirement b.
Note that:
1. Any envisaged exemptions adopted from the SF IPM program has to be listed.
2. The public has to be notified of any pesticides use under exempt conditions
3. Annual update of the IPM plan
4. Display the IPM plan in the building communal area and/or on website
5. Engage organic gardening professional for design of landscaping, and if infestation occurs
6. Ensure that ongoing use of IPM is part of any FM contract that manages the landscaping

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce the presence of pests in buildings and minimizing occupant exposure to harmful chemicals.'

For any projects undergoing current renovation or demolition whichthat were constructed or renovated between 1950 and the institution of any applicable laws banning or restricting PCBs, the below guidelines are applied and a policy put in place for future work:

All commercial and institutional spaces found to have lead-based hazards must adhere to U.S. EPA 40 CFR Part 745.227 work practice standards for conducting lead-based paint activities, as outlined in U.S. 40 CFR Part 745.227 for multi-family dwellings and in U.S. 29 CFR Part 1926.62 for general construction work. An occupant protection plan must be implemented during the work activities.

The standard GBZ/T 192.5 – 2007 National Occupational Health Standards - Method for Determination of Dust in the Air in the Workplace Part 5: Asbestos Fiber Concentration has been accepted as an equivalent for 40 CFR Part 763 of Feature 11 Part 3 for projects in China. Note that the scope this of this equivalency is limited to requirement (c) of this feature part (post-abatement clearance testing).

Projects in China may use the following asbestos inspection, management and post-remediation clearance requirements in lieu of those required in Feature 11, Part 3.

a) Inspection requirements
On-site inspection is conducted by a knowledgeable professional. The inspection report must include: (1) Examination of building records, if existing, to evaluate portions of the building likely to contain Asbestos containing building materials (ACBM).
Visual assessment of suspected ACBM. (2) Tactile (touch) verification of suspected ACBM to determine whether they are friable (i.e., likely to become particles). (3) An inventory with all areas containing suspected ACBM. (4) A confirmation sample for areas that are not suspected ACBM is recommended.

b) Asbestos management plan
If the presence of asbestos is confirmed or suspected per the initial inspection, a plan needs to be written and implemented, containing at least the following elements: (1) A blueprint of the building and identification of suspected and confirmed ACBM. (2) Description of all abatement removal actions. (3) For ACBM left-in-place, description of management activities that may include: periodic structural check, painting, isolation of spaces with ACBM, encapsulation. (4) A surveillance and reinspection schedule (with a 3-year minimum periodicity) based on the status of the remediation and the integrity of the ACBM left in place, with special emphasis in potentially friable ACBM. (5) Description of preventative measures to minimize the risk of exposure to asbestos. (6) Notification (and sample, if deemed necessary) procedures in case of potential exposure due to the loss of integrity of ACBM. (7) Post-remediation clearance protocols, including air testing.

c) Post-abatement clearance
As described in the Asbestos Management Plan, post-abatement clearance must be stated, properly documented, and performed according to applicable standards.

Projects may meet Feature 11 Part 1 by complying with requirements for maximum concentration values for toxic chemicals tolerated by weight in homogenous materials as required by European Union’s Restriction of the Use of Certain Hazardous Substances (RoHS).

EPA Ireland - Management Plan for Polychlorinated Biphenyls (PCBs) in Ireland has been accepted as an alternative for the requirements of Feature 11, Part 4 for projects in Ireland.