CARB P2 Plywood for US Market: Full Compliance Guide

CARB P2 is not optional for hardwood plywood entering the United States. Since 22 March 2019, hardwood plywood sold, imported or distributed in the US must meet the CARB Phase 2 formaldehyde limits, now set at federal level by TSCA Title VI. Knowing what the standard requires, how certification works and which documents to ask for is what separates a smooth clearance from a detained container.

This guide explains CARB P2 in practical terms for B2B plywood importers, which Vietnamese products need it, and what changed for US-bound plywood in 2026.

What Is CARB P2 and Why Does It Apply to All US Plywood Imports?

CARB P2 stands for California Air Resources Board Phase 2, the second and final phase of CARB’s Airborne Toxic Control Measure (ATCM) for formaldehyde from composite wood products. Phase 1 took effect in 2009; Phase 2 was fully in force by 2012.

The step that matters for international suppliers came in December 2016, when the US Congress passed the Formaldehyde Standards for Composite Wood Products Act as Title VI of the Toxic Substances Control Act (TSCA). It took the CARB Phase 2 limits nationwide. The federal rule is codified at 40 CFR Part 770; section 770.10(b)(1) sets the hardwood plywood limit.

Since 22 March 2019, hardwood plywood made in or imported into the US must meet TSCA Title VI, which uses the same numbers as CARB Phase 2.

For importers this means there is no “non-CARB” route for US-bound interior plywood. A buyer in Texas or Florida faces the same limit as one in California.

CARB P2 Emission Limits: What the Numbers Mean

CARB P2 sets product-specific formaldehyde ceilings. For the main composite wood panels:

Sources: CARB ATCM; 40 CFR 770.10(b)(1) for hardwood plywood.

The 0.05 ppm limit for hardwood plywood is the strictest of the composite panel categories, and veneer-core and composite-core plywood share it.

How does this relate to E0? E0 is not one global number. Different markets and test methods attach different values to it, so an E0 claim only means something when the method is quoted with it. ASTM results in ppm and EU chamber results in mg/m³ come from different test set-ups and must not be converted into each other. For US customs and retailers, the TPC certificate and TSCA Title VI documents are what count.

Our guide to plywood emission standards by market compares E0, E1, E2 and CARB P2 in more detail.

How CARB P2 Certification Works: The TPC System

CARB P2 and TSCA Title VI compliance is not self-declared. A mill producing hardwood plywood for the US works with a Third-Party Certifier (TPC), an independent body recognised by CARB and the US EPA, which audits production and certifies the products.

The TPC Certification Process

1. Application and audit: the mill applies to a recognised TPC, which audits the quality system and takes samples.
2. Laboratory testing: samples are tested for formaldehyde emission. ASTM E1333 (large chamber) is the reference method; ASTM D6007 (small chamber) is used for routine testing once its correlation with E1333 is established.
3. Certificate: if the results meet 0.05 ppm, the TPC certifies the product and the mill receives a TPC number.
4. Ongoing oversight: the TPC audits the mill and supervises routine QC testing. Certification is continuous, not a one-time approval.
5. Labelling: certified panels or bundles carry a label with the TPC number and a lot reference. That label is the physical proof of compliance in the supply chain.

For the premium furniture segment, HCPLY’s partner mills hold CARB P2 / TSCA Title VI certification through an approved TPC. The TPC name and certificate number are shared with any formal quotation, before the order is confirmed.

Which Vietnam Plywood Products Need CARB P2?

Vietnamese mills usually specialise in one segment. For US buyers the split looks like this:

Premium furniture segment (CARB P2 / TSCA Title VI available)

• Products: birch-, EV-, okoume-, pine-, poplar- and eucalyptus-faced plywood
• Core: styrax (~500 kg/m³) or eucalyptus (~650 kg/m³)
• Glue: melamine (MR). Emission: E0 / CARB P2 (two separate spec lines)
• Core construction: stitched outer layers as standard, full stitching on request
• Surface: sanded, thickness tolerance ±0.2–0.3 mm

Commercial and packing segment (E1/E2, not for US interiors)

• Products: bintangor-faced commercial and packing plywood
• Core: acacia (~580 kg/m³), loose-laid or edge-jointed
• Glue: melamine (MR). Emission: E1/E2
• Suited to packaging and price-led markets, not to US furniture or cabinet buyers

Film-faced construction segment

• Products: film-faced and anti-slip plywood on acacia or eucalyptus cores
• Glue: phenolic (WBP) or melamine-reinforced, for formwork and decking
• A construction product rather than interior hardwood plywood. If your US customer requires emission documents for it, say so at enquiry so the correct documents are prepared.

⚠️ Important: When you ask for a quotation for US-bound plywood, write “CARB P2 / TSCA Title VI compliant” in the enquiry. Two offers with the same product name can come from different segments, and only the certified one will carry a valid TPC label.

“A US enquiry that only says ‘E0 birch plywood’ is incomplete,” says Lucy, International Sales Manager at HCPLY. “We ask for the application and the market first, then quote from the certified furniture segment with the TPC details attached.”

For a full furniture specification, see the furniture plywood specification guide.

CARB P2 in Production: What Gets a Panel to 0.05 ppm?

Meeting 0.05 ppm depends on three things: adhesive chemistry, pressing and quality control.

Adhesive formulation. Standard urea-formaldehyde (UF) resins release more formaldehyde than CARB P2 allows. Compliant production uses low-emission formulations such as melamine-urea-formaldehyde (MUF) or no-added-formaldehyde systems. Note that glue type and emission class are two different things: a melamine glue line can be built to E0, E1 or E2.

Hot pressing. The adhesive must cure fully. MR (melamine) panels are typically pressed at about 110–120°C, against 130–145°C for WBP (phenolic). Under-cured glue lines release more formaldehyde after pressing.

QC discipline. Routine emission testing under TPC oversight, lot labelling and the same adhesive and process from order to order are what keep a product certified. A buyer’s biggest risk is not the certificate itself but a supplier who changes material after the first order, so keep test reports and labels from every lot.

What Documentation to Request for CARB P2 Compliance

US importers are responsible for making sure the composite wood products they bring in meet TSCA Title VI, and must keep compliance records for 3 years.

When ordering CARB P2 plywood from any Vietnamese supplier, ask for this documentation package:

Certificate documents are sent before the order is confirmed. Draft shipping documents (commercial invoice, packing list, B/L, C/O and the certification papers for the order) are sent for your approval after loading. Shipping documents are issued in the name of the producing mill.

For the wider picture, including Lacey Act species declarations, see the complete US plywood compliance guide.

Request CARB P2 documentation samples from HCPLY

What Changed for US-Bound Plywood in 2026

The emission limit did not change in 2026, but the trade setting for Vietnamese plywood did. Status as of October 2026:

1. AD/CVD case on hardwood and decorative plywood from Vietnam (A-552-851 / C-552-852). Commerce issued final determinations on 21 July 2026 and the ITC voted on injury on 9 September 2026; the order had not yet been published in early October 2026. The final all-others rates are 90.12% anti-dumping and 47.68% countervailing. Structural PS 1/PS 2 plywood, phenolic film-faced plyform, flooring and ready-to-assemble furniture are listed outside the scope. Follow the current status in our US anti-dumping plywood update.

2. The 2023 circumvention rulings (A-570-051 / C-570-052) still apply. Plywood finished in Vietnam with Chinese faces, backs or cores is subject to the China duty orders. Other Vietnamese plywood needs certifications from both the importer and the exporter. Ask for the exporter certification together with the CARB documents.

3. CARB P2 / TSCA does not change with the duty status. A shipment can be outside a duty scope and still require full TSCA Title VI compliance. Keep the two checks separate in your import file.

4. Structural plywood: PS 1-22 is current. NIST lists PS 1-22 as the current structural plywood standard and PS 1-19 as superseded. This matters for buyers who order structural panels alongside interior grades.

5. Selling the same panel in the EU. Since 6 August 2026, EU REACH (Annex XVII entry 77) limits furniture and wood-based articles to 0.062 mg/m³ under its own chamber test conditions. A CARB P2 / TSCA certificate is evidence that many European buyers accept, and an independent EN 717-1 chamber test (Appendix 14 conditions) can be arranged when a customer asks. Do not translate the US 0.05 ppm figure into an EU number.

💡 Note: Duties are a compliance cost to check, never a reason to choose a product. Specify the panel your application needs, then check emission rules and duty scope for that exact product.

CARB P2 vs. Other Emission Rules: Quick Reference

Buyers who supply several markets need to see how CARB P2 sits next to European and Asian requirements. The key rule: always read a limit together with its test method.

Sources: CARB ATCM; 40 CFR 770.10(b)(1); Regulation (EU) 2023/1464; JAS F4-star specification.

For buyers who split one product between the US and the EU, specifying CARB P2 from a certified furniture mill covers the US formally, and is a good basis for the EU when backed by a test to the EU method on request. The plywood certifications and export documentation guide has the full multi-market matrix, and our page on quality certifications lists what the partner mills hold.

Related reading:

• The difference in detail: E0 vs CARB P2 guide.
• The broader US market CARB P2 plywood guide.
• Ready to source? See how to order plywood from Vietnam.

Conclusion: Specify CARB P2 Explicitly

CARB P2 / TSCA Title VI is a fixed entry condition for interior hardwood plywood in the US. The limit for hardwood plywood is 0.05 ppm, and the compliance chain is simple: a current TPC certificate for the producing mill, labelled panels or bundles, a test report, a TSCA statement in the shipping documents, and 3 years of records on the importer’s side. Since 2026, add one more check: the duty scope and certifications for Vietnamese plywood.

To check the CARB P2 status of a specific product or request a test report for your compliance file, contact our export team.

Disclosure: This article is published by HCPLY, a Vietnam-based plywood export operator working with specialised partner mills. We aim to give objective guidance, but readers should weigh our perspective as a market participant.

View HCPLY’s plywood product range for the US market