Updated:
Projects may exceed 500 µg/m³ in total VOCs (part 1c), so long as the following individual component VOCs do not exceed the limits listed in CDPH/EHLB/Standard Method V1.1, Table 4.1 (one half the Chronic Reference Exposure Levels (CREL) issued by Office of Environmental Health Hazard Assessment):

For Part 1a, remove: "inside the building". Add: "inside the project"

A thermal comfort survey has not been accepted as an equivalent for the requirements of Feature 03 Part 3. Note that the intent of Feature 03 is to ensure adequate ventilation and high indoor air quality. Additionally, the reference standard for this feature is ASHRAE 62.1-2013: Ventilation for Acceptable Indoor Air Quality, not ASHRAE 55-2013.

Where projects are restricted from implementing a demand-controlled ventilation system or are unable to retrofit the existing ventilation system to be demand-controlled, the requirements of Feature 03 Part 2 may be met through the following conditions for outdoor air supply rate, whichever is more stringent:
1. Exceed the ventilation rates set in ASHRAE 62.1-2013 (Ventilation Rate Procedure or IAQ Procedure) by 40%. Note that if this feature part applies to more than 50% of the total floor area at the project site, projects are not eligible to receive points for Feature 15 Part 1a.
2. Provide a ventilation supply rate of 12 L/s (25 CFM) per person or higher.

CIBSE Guide A has been accepted as an alternative for the requirements in ASHRAE 62.1 2013 for Feature 3 Part 1

For Part 2b, add: "(measured at 1.2-1.8 m [4-6 ft] above the floor)" after "below 800 ppm" and add: "maximum" after "at"

EN 13779, section A. 15. 2, Table A.10 may be used to comply with Feature 03, Part 2. Note, projects must adhere to Indoor Air Category IDA 1 or 2.

CEN Standards EN 15251:2007 and EN 13779:2007 may be used in lieu of ASHRAE 62.1-2013 for Feature 03, Part 1.

The requirements of CEN Standard EN 15251-2007 must be met AND the performance requirements of CEN Standard EN 13779:2007 related to ventilation and room conditioning systems must be met (excluding section 7.3, Thermal Environment; section 7.6, Acoustic Environment; section A.16; and section A.17).

Projects must meet Category I or II as described in the standards.

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To ensure adequate ventilation and high indoor air quality.'

Under Part 2, after “For all spaces” insert the following: “46.5 m² [500 ft²] or larger”

For Part 4a, remove: "(Ventilation Rate Procedure or IAQ Procedure) for residential buildings of 3 or fewer floors". Add: "(or more recent version) for dwelling units"

Remove: "c. Projects comply with all requirements set in the Natural Ventilation Procedure…the previous year."

For Part 5a, remove: "and". Add: "or"

NEN-EN-ISO 17895 has been accepted as an alternative for the requirements of Feature 04 Parts 1 and 2. Note that while NEN-EN-ISO 17895 is acceptable for determining VOC content, the products must adhere to the VOC limits set forth in CARB 2007, Suggested Control Measures (SCM) for Architectural Coatings, or South Coast Air Quality Management District (SCAQMD) Rule 1113 and Rule 1168.

The Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) regulation of the European Union (Regulation EC No 1907/2006) has not been accepted as an equivalency for the requirements of Feature 04 Part 4. Note that the Equivalency Proposal outlines a strategy for the elimination of hazardous substances through the use of REACH lists but not an equivalency to requirements set in CDPH Standard Method v1.1-2010.

The Good Environmental Choice Australia (GECA) Building Insulation Materials (BIMv2.0-2017) standard has been accepted as an alternative for the requirements of Feature 04 Part 4.

The level© certification has been accepted as an alternative to the ANSI/BIFMA e3-2011 Furniture Sustainability Standard sections 7.6.1 and 7.6.2, tested in accordance with ANSI/BIFMA Standard Method M7.1-2011, requirements of Feature 04. Note that section 7.6 Low Emitting Furniture credits (7.6.1 and 7.6.2) from level© certification must be achieved.

Formaldehyde E1 class has been accepted as an alternative to the requirements of Feature 04, Part 5 for furniture substrates. Note that this is only acceptable for projects in Europe.
Also note that the Formaldehyde E1 class is the Option 1 performance requirement for wood panels listed within BREEAM UK New Construction: Hea 02 Indoor Air Quality. Please refer to the previously approved EP on 07 April 2017 (http://standard.wellcertified.com/air/voc-reduction?page=3&view=equivalency) for additional information on Hea 02 Indoor Air Quality.

CertiPUR has been accepted as an alternative for the requirements of Feature 04, Part 5. Note this only applies to projects in Europe, specific to polyurthane foam used in bedding and upholstered furniture. This Equivalency does not cover any other furniture or furnishing components except for the polyurethane foam. All other non-foam components of installed furniture must be separately tested and held to the limits specified in ANSI/BIFMA e3-2011 section 7.6.1 and 7.6.2, or other relevant, equivalent standard.

CertiPUR/EUROPUR has been accepted as an alternative to the requirements of Feature 04, Part 5, specific to polyurethane foam used in bedding and upholstered furniture. This Equivalency does not cover any other furniture and furnishing components except for the polyurethane foam.

In part description, add: "interior" after "newly applied"

TÜV Rheinland Green Product Mark Furniture criteria, 2PfG E1992, has been accepted as an alternative for the requirements of Feature 4 Part 5.

The GB 18580-2001 Indoor Decorating and Refurbishing Materials - Limit of Formaldehyde Emission of Wood-based Panels and Finishing Products has not been accepted as an alternative for the requirements of Feature 4 Part 3, 4 and 5. Note the proposed testing method standard does not include methods for testing VOCs other than formaldehyde.

REACH Standard No 1907/2006 has not been accepted as an equivalency to the requirements set in Feature 04 Part 4. Note that the Equivalency Proposal outlines a strategy for the elimination of hazardous substances through the use of REACH lists, but not an equivalency to requirements set in CDPH Standard Method v1.1-2010.

GEV-EMICODE EC1 and EC1Plus is approved as an acceptable equivalent to the requirements of Feature 4 VOC Reduction Part 1, 2, 3 and 4. Note, projects must adhere to the minimum formaldehyde requirement specified in the CDPH Standard Method v1.1-2010 for VOC emissions.

M1 (EN-717-1:2004) is approved as an acceptable equivalent to the requirements of Feature 4 VOC Reduction Part 5.

Blue Angel is approved as an acceptable equivalent to the requirements of Feature 4 VOC Reduction Part 1, 2 and 3. Note, projects must adhere to the minimum formaldehyde requirement specified in the CDPH Standard Method v1.1-2010 for VOC emissions.

OEKO-TEX is approved as an acceptable equivalent to the requirements of Feature 4 Part 4.

EN 13964:2014 emission testing method has been accepted as an alternative for the requirements of Feature 4, Part 4 for suspended ceilings. Ceilings with heating or cooling properties and walls must meet limits set by the California Department of Public Health Standard Method v1.1-2010. Formaldehyde emission should be measured in accordance with EN 717-1:2004.

SGS TVOC laboratory testing method has been accepted as an alternative equivalent to Feature 04 Part 4. Note, projects must adhere to the minimum VOC limit requirements of the CDPH Standard Method v1.1-2010 for VOC emissions. This equivalency may only be used for projects in India.

The Australian Carpet Classification Scheme (ACCS) has been accepted as an equivalent for CDPH Standard Method v1.1 of Feature 4 Part 1.

IS 101.2.2.1986 and IS 101.2.1.1988 are acceptable equivalent testing method standards in order to measure in accordance with the VOC content threshold limits specified in SCAQMD Rule 1113 for Part 1a.

GUT has been accepted for Feature 04 Part 3.

The GUT standard was created by the European carpet industry, and aims ""to improve continuously all environmental and consumer protection aspects throughout the life cycle of a textile floor covering (from production to installation, to use phase and recycling"".

This standard is only applicable to Part 3, and thresholds are as follows:

Termination criteria 3 days after loading:
TVOC: 250 µg/m³
Formaldehyde: 9 µg/m³

Desired values 28 days after loading:
TVOC: 100 µg/m³
Formaldehyde: 4 µg/m³

Exemplary level emission criteria for BREEAM International New Construction 2016 scheme has been accepted as an equivalent standard to the California Department of Public Health (CDPH) Standard method v1.1-2010 as specified in Part 4a of this feature. The thresholds are as follows:
Formaldehyde limit of 9 µg/m³
TVOC limits of ≤ 0.3 mg/m³
The insulation materials may be tested using one of the following methodologies:
ISO 16000-9
CEN/TS 16516
CDPH Standard Method v1.1

BREEAM-NL New Construction 2014, Hea 09 - Volatile Organic Compounds, is an approved alternative to BREEAM UK New Construction 2014 Hea 02 - Indoor Air Quality to meet WELL Feature 04 Parts 1-3.

Previously published as an AAP:
Field and Laboratory Emission Cell (FLEC) emissions testing is approved as an emissions testing methodology only for furniture and furnishings that are made up of a uniform material and have flat testing surfaces on which the FLEC emissions testing methodology may be applied. For example, flat surfaced cabinetry that is made up of a uniform material may be tested using this methodology. However, chairs that are made from a variety of materials that lack flat surfaces may not be tested using this methodology. The emissions test must be administered by a third party investigator with no affiliation with the project. The associated costs are the responsibility of the project team. Additional tests performed in accordance with ISO 16000 methodology must be performed for total aldehydes and 4-Phenylcyclohexane and must meet the thresholds specified in the WELL Building Standard.

Add: "b. For furnishings, California Department of Public Health (CDPH) Standard Method v1.1-2010."

Updated:
LEED v4 EQc Low-emitting materials credit is deemed equivalent for Part 1. Please note that the project must adhere to the ""Additional VOC content requirements for wet-applied products"" section (found in LEED v4). Additionally, all newly applied paints and coatings must be in compliance.
BREEAM UK NC/RFO 2014, INC. 2016 and IRFO 2015 Hea 02: Indoor air quality - Volatile organic compound (VOC) emission levels (products) credit is deemed equivalent for Part 1. Please note the project must adhere to the Volatile organic compound (VOC) emission levels for products (found in Table 18 in the BREEAM UK New Construction 2014, Table 20 in the UK RFO 2014, Table 17 and 18 in the INC 2016). Additionally, all newly applied paints and coatings must be in compliance.

LEED v4 EQc Low-emitting materials credit is deemed equivalent for Part 2. Please note that the project must adhere to the ""Additional VOC content requirements for wet-applied products"" section (found in LEED v4). Additionally, all newly applied adhesives and sealants must be in compliance.
BREEAM UK NC/RFO 2014, INC 2016 and IRFO 2015 Hea 02: Indoor air quality - Volatile organic compound (VOC) emission levels (products)credit is deemed equivalent for Part 2. Please note the project must adhere to the Volatile organic compound (VOC) emission levels for products (found in Table 18 in the BREEAM UK New Construction 2014, Table 20 in the UK RFO 2014, Table 17 and 18 in the INC 2016). Additionally, all newly applied adhesives and sealants must be in compliance.

LEED v4 EQc Low-emitting materials credit is deemed equivalent for Part 3. Please note that the project must adhere to the ""General emissions evaluation"" section (found in LEED v4). Additionally, all newly installed flooring must be in compliance.
BREEAM UK NC/RFO 2014, INC 2016 and IRFO 2015 Hea 02: Indoor air quality - Volatile organic compound (VOC) emission levels (products) credit is deemed equivalent for Part 3. Please note the project must adhere to the Volatile organic compound (VOC) emission levels for products (found in Table 18 in the BREEAM UK New Construction 2014, Table 20 in the UK RFO 2014, Table 17 and 18 in the INC 2016). Additionally, all newly installed flooring must be in compliance.

LEED v4 EQc Low-emitting materials credit is deemed equivalent for Part 4. Please note that the project must adhere to the ""General emissions evaluation"" section (found in LEED v4). Additionally, all newly installed insulation must be in compliance.

LEED v4 EQc Low-emitting material credit is deemed equivalent for Part 5. Please note that the project must adhere to the ""Furniture evaluation"" section (found in LEED v4). Additionally, 95% (by cost) of all newly purchased furniture and furnishing must be in compliance.

Note BREEAM equivalency is only applicable for Feature 4 Parts 1-3.

CalGreen 2013 Title 24, Part 11, California Green Building code has been approved as an equivalent for F04, Parts 1 and 2. For Part 3, projects are required to meet 100% of the resilient flooring requirements according to CalGreen 2013 Title 24 in order to fully comply with WELL requirements.

Indoor Advantage Gold has been approved as an acceptable alternative for F04, Parts 1, 2, 4, and 5.

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize the effect of VOCs in building materials on indoor air quality.'

AFRDI Green Tick Furniture is compliant with Feature 4, Part 5.
It should be noted that GECA's allowable emission levels exceed those required in the ANSI/BIFMA e3-2011 Furniture Sustainability Standard, and GECA does not address the VOC emission concentration thresholds required by the ANSI/BIFMA e3-2011 Furniture Sustainability Standard. However, GECA is currently deemed a best in class within its market at this time.

Floorscore has been approved as an equivalent standard F04, Parts 2 and 3.

Change “The VOC content of all newly installed thermal and acoustic insulation in ceilings and walls…” to “The VOC content of all newly installed thermal and acoustic insulation inside the waterproofing membrane…”

Under Part 1c, delete "VOC control" and replace with "VOC content".

Add Owner Letter of Assurance as required documentation.

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."

Class F 7 (or higher) media filters are an acceptable equivalent to MERV 13 (or higher) media filters.