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.

Products certified under Good Environmental Choice Australia (GECA) FFFMv3.0-2017, Furniture, Fittings, Foam and Mattresses (Level A) are considered to meet the lead and asbestos restrictions of Feature 11 Part 1.

All newly installed building materials meet the following materials composition requirements:

1. No asbestos >1% by weight in the following:
   • Thermal system insulation (applied to pipes, fittings, boilers, breeching, tanks, ducts or other like components to prevent heat loss or gain).
   • Surfacing material (that is sprayed, troweled or otherwise applied to surfaces, for example acoustical plaster or fireproofing materials).
   • Wallboard/millboard, resilient floor covering, roofing and siding shingles (including metal cladding) and construction mastics.
2. For furnishings, at minimum 20% by cost of the following building product and material types contain < 100 ppm added lead:
   • Doors and door hardware.
   • Ductwork.
   • Conduits. 
   • Metal studs.
   • Mirrors/glass.
   • Brass cooler drains, pumps, motors and vales.
   • Roofing or flashing.
   • Vinyl blinds or wall covering.
   • Other (Product categories can be suggested for inclusion in the cost calculation, provided evidence/documentation for added lead content is presented.)

Wherever procurement of a product or a material type is not possible, the project is permitted to submit documentation demonstrating an attempt has been made, including a petition or formal request filed with at minimum three manufacturers (per product or material type) who were unable to meet their needs.

European Directive 2011/65/EU (RoHS II) has been accepted as an alternative for the requirements of Feature 11, Parts 5a and 5b, for Europe. Note that high-pressure sodium lamps must still meet the requirements set in LEED v4 PBT source reduction - mercury credit.

OSHA 29 CFR 1926.62 has not been deemed equivalent to EPA 40 CFR Part 745.227 for the requirements of Feature 11, Part 2. Note while the acceptable work practices are similar between the two standards, OSHA 29 CFR 1926.62 does not establish determinations for all lead-related hazards to an occupant beyond the potential exposure of a construction employee.

Complex electrical or data products that are made up entirely of small electrical components, such as fire alarms, meters, sensors, thermostats and load break switches, may meet the European Union’s Restriction of the Use of Certain Hazardous Substances (RoHS) Directive in lieu of the 100 ppm limit on added lead in Feature 11 Part 1c. RoHS establishes the following maximum concentration values for chemicals by weight in homogeneous materials:
1. Lead (Pb): < 1000 ppm
2. Mercury (Hg): < 100 ppm
3. Cadmium (Cd): < 100 ppm
4. Hexavalent Chromium (Cr VI): < 1000 ppm
5. Polybrominated Biphenyls (PBB): < 1000 ppm
6. Polybrominated Diphenyl Ethers (PBDE): < 1000 ppm
7. Bis(2-Ethylhexyl) phthalate (DEHP): < 1000 ppm
8. Benzyl butyl phthalate (BBP): < 1000 ppm
9. Dibutyl phthalate (DBP): < 1000 ppm
10. Disobutyl phthalate (DIBP): < 1000 ppm

For Part 5b, remove: "Project develops a plan to upgrade current mercury-containing lamp". Add: _“Project does not install any lamps not compliant with the low-mercury limits specified in Appendix C, Table A5. Project develops a plan to upgrade any existing non-compliant lamps to low-mercury or mercury-free lamps.”

In part description, remove: "following guidelines". Add: "below guidelines, and a policy is put in place for future work"

Add: "and Policy Document" after "Remediation Report"

In feature background, remove: "(Please refer to Table A3 for additional details.)"

In part description, remove: "on buildings". Add: "of projects"

The Dutch Working Conditions Legislation (including the Decree, Act, and Regulation) has been approved as an alternative to AHERA for Feature 11, Part 3. Note that projects must maintain a copy of the records produced by the asbestos investigator/abatement contractor, which should be made available to the building occupants.

S.I. 386/2006, 589/2010, and 291/2013 have been accepted as an equivalent for AHERA and 40 CFR part 763 of Feature 11 Part 3. Note that inspection by an accredited professional is conducted every three years.

Remove: "Not more than 100 ppm (by weight) added lead". Add: "Not more than a weighted average of 0.25% lead in wetted surfaces of pipes, pipe fittings, plumbing fittings, and fixtures, and 0.20% for solder or flux used in plumbing for water intended for human consumption"

The New York Department of Environmental Protection Asbestos Control Program and Asbestos Rules and Regulations has been approved as an equivalent to AHERA for Feature 11, Part 3.
Note that projects must maintain a copy of the records produced by the asbestos investigator/abatement contractor, which should be made available to the building occupants.

Add MEP Letter of Assurance as required documentation.

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the potential for bacteria and mold growth within buildings from water infiltration and condensation.'

For Part 1a, remove: "4,500 m³ of outdoor air per m²". Add: "4,266 m³ of outdoor air per m²"

In Part 1b, change “0.3 CFM fresh air per ft² of floor area” to “0.3 CFM outdoor air per ft² of floor area”

NEN-EN 1026/BS-EN 1026 and NEN-EN 12153/BS-EN 12153 have been accepted as an alternative for the requirements of Feature 14, Part 1. Note this is only applicable for projects in The Netherlands.

In system diagram, add: "Immune" and "Respiratory" to list under diagram of body system

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize air quality and thermal comfort issues resulting from the infiltration of untreated air through the building envelope.'

Remove: "The following is required in terms of the rate of outdoor air supply to all regularly occupied spaces". Add: "One of the following is required in all regularly occupied spaces"

Add: "b. Follow CIBSE AM10, Section 4, Design Calculations, to predict that room-by-room airflows will provide effective natural ventilation."

AS 1668.2 may be used in lieu of ASHRAE 62.1 for Feature 15, Part 1. Note that projects that wish to comply with AS 1668.2 must increase ventilation by 50% rather than the 30% increase required when complying with ASHRAE 62.1.

Change Part name from "Increased Fresh Air Supply" to "Increased Outdoor Air Supply"

In Part 1a, change “Exceed ASHRAE fresh air supply rates…” to “Exceed ASHRAE outdoor air supply rates…”

ASHRAE 55 - Universal Comfort Zone has not been deemed acceptable as an equivalent method for the requirements of Feature 16 Part 1. ASHRAE 55 - Universal Comfort Zone includes a formula to calculate optimal interior relative humidity levels that may fall outside of the range specified in the WELL Building Standard.

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the growth of pathogens, reduce off-gassing, and maintain thermal comfort by providing the appropriate level of humidity.'

Projects may achieve Feature 17, Part 1 by using printers and plotters that are not low-emission in occupied rooms (rather than being "closed from adjacent spaces") so long as there is an exhaust fan above the printer and they are used for on average less than 1,000 pages per month.
In addition to original documentation requirments, projects must submit past print logs or summaries demonstrating acceptable volume of printing

Eco Mark No. 155 has been accepted as an equivalent to the low-emission criteria for printers and copiers for Feature 17, Part 1. Note that this equivalency may only be used for projects in Japan.

Low emission criteria of EPEAT has been accepted as an alternative to Ecologo CCD 035, Blue Angel RAL- UZ 171 or Green Star in Feature 17 Part 1.

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To preserve air quality in occupied spaces through the isolation and proper ventilation of indoor pollution sources and chemical storage areas.'

For Part 2a, remove: "the Air Quality Standards feature". Add: "Part 1: Indoor Air Monitoring"

Add: "(measured at 1.2-1.8 m [4-6 ft] above the floor)" after "once an hour"

The requirements of Part 3 (Environmental Measures Display) may be met by hosting the required data on a website accessible to occupants and in locations where the physical display would be located, placing signage indicating the website where the data may be accessed.

Add on-site spot checks as required verification.

In 27 Apr, 2017 AAP, remove: "tenant space" after "a. Must be directly accessible from the". Add: "project"

For Feature 19, Part 1, a dedicated outdoor terrace can be provided. The terrace must satisfy the following requirements:
a. Must be directly accessible from the project
b. Must have seating for a minimum of 15% of the total regular project occupants
c. Must be adequately shaded to allow occupants to perform their work without significant glare
d. Feature 19, Part 2 and Part 3 must be addressed

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To increase the supply of high quality outdoor air and promote a connection to the outdoor environment by encouraging occupants to open windows when outdoor air quality is acceptable.'

Add Architect Letter of Assurance as required documentation, remove annotated architectural drawing.

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

For Part 1b, remove: "all applicable ASHRAE standards and codes". Add: "ventilation standards used in Feature 03 Ventilation effectiveness"

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve air quality in the breathing zone of the room and maintain thermal comfort by supplying low velocity outdoor air near the floor and expelling near the ceiling.'

Projects may achieve Feature 22, Part 1 by using existing cabinetry with built-in open trash receptacles so long as they are emptied and inspected for pests on a daily basis and additional pest management procedures be incorporated (e.g., tolerance and action threshold, specific response times, and evaluation/record keeping). Should pests eventually become an issue, the project commits to providing lids at trash receptacles immediately.