Sourcing & Compliance

CARB P2, JAS and NWFA Explained for Hardwood Flooring Buyers

CARB P2, JAS and NWFA explained for hardwood flooring buyers: what each reference tells you, what it does not, and which documents to request from a supplier.

Vu Uy Wood · October 5, 2026
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Supplier pages often show a short row of logos or acronyms, and buyers are left to work out what each one actually covers. Some are regulatory requirements, some are product standards, and some are memberships. Treating them as interchangeable leads to wrong assumptions and missing paperwork. This article explains CARB Phase 2, JAS, NWFA membership and VOC 2010 compliant coatings, and what to ask for in each case.

Three different kinds of reference

Before looking at each one, it helps to separate them by type:

ReferenceTypeWhat it concerns
CARB Phase 2Regulatory emission requirementFormaldehyde emissions from composite wood
JASNational product standard (Japan)Grading and construction requirements
NWFA memberIndustry association membershipAccess to technical and installation guidance
VOC 2010 compliant coatingsCoating content limitVolatile organic compound content of finishing materials

Only the first is a regulatory requirement for the U.S. market. The others are useful, but they answer different questions.

CARB Phase 2

What it is

CARB is the California Air Resources Board. Its composite wood products regulation sets formaldehyde emission limits for composite wood such as hardwood plywood, particleboard and MDF. Phase 2 is the current, stricter stage of those limits. It was written for California, and U.S. buyers generally treat it as the baseline that composite wood must meet to enter the U.S. market. The regulation itself is published by the California Air Resources Board.

What it tells a buyer

For flooring, CARB Phase 2 matters where the board contains composite wood. In an engineered floor, that is the core: a 2-layer board has an oak wear layer bonded to a plywood core, and a 3-layer board has a wear layer, core and backing layer. A CARB P2 reference tells you the composite wood in the product is intended to meet the Phase 2 formaldehyde emission limits.

What it does not tell you

What to ask for

JAS (Japanese Agricultural Standards)

What it is

JAS is the system of Japanese Agricultural Standards, established under Japan’s Ministry of Agriculture, Forestry and Fisheries. For wood products it includes standards for flooring and plywood. In the Japanese market, JAS is referenced for product grading and construction requirements.

What it tells a buyer

A JAS reference tells you the supplier works with a defined national standard for how a board is graded and built. That is useful discipline even for buyers outside Japan, because it implies written definitions rather than informal ones.

What it does not tell you

What to ask for

NWFA membership

What it is

The National Wood Flooring Association is an industry association. Its technical guidance is widely referenced for wood flooring installation, and members have access to that guidance, training and industry contacts.

What it tells a buyer

Membership tells you the supplier participates in the wood flooring industry’s main association and has access to the technical references that installers and inspectors commonly use. When a question comes up on site, both sides can work from the same guidance.

What it does not tell you

NWFA membership is not a certification. It does not certify a factory, a product, an emission level or a quality level. A supplier that presents membership as a product certification is overstating it, and a buyer should not treat it as one.

What to ask for

VOC 2010 compliant coatings

What it is

VOC stands for volatile organic compounds. Coating content limits restrict how much VOC a coating may contain. A supplier stating VOC 2010 compliant coatings is saying that the coatings on its finishing line are held to 2010 VOC content limits.

What it tells a buyer

It tells you something about the finishing materials used on a prefinished floor, such as stains and topcoats applied on a UV finishing line. If you want to understand that line, our article on UV-cured finishes applied in line explains the steps.

What it does not tell you

What to ask for

Document checklist for a new supplier

ReferenceDocument to requestWhy
CARB Phase 2Certification for the composite core, certifier name and numberProves the core is covered
CARB Phase 2Carton and document labeling sampleShows how compliance will be stated
JASStandard referenced, mark status for your productSeparates a reference from a marked product
NWFAMembership confirmation, recommended installation guidanceAligns supplier and installer
VOC 2010Coating technical and safety data sheetsIdentifies the finishing materials

Matching the reference to the construction

The references you need depend on how the board is built. A 2-layer or 3-layer engineered board has a composite core, so CARB Phase 2 documentation is central. A solid board has no core, so the conversation shifts to species, grade and finish. Our 2-layer vs 3-layer engineered oak article explains how the constructions differ.

Working with Vu Uy Wood

Vu Uy Wood manufactures solid and engineered French White Oak flooring in Song Than 3 Industrial Park, Ho Chi Minh City, since 2006. The standards and industry references we work with are CARB Phase 2, JAS, NWFA membership and VOC 2010 compliant coatings on our finishing line. If you need documentation for a specific construction, include it in your request through the contact page, and we will confirm what applies to the product you are specifying.

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