Dear,
I have a question about IEQc4.3.

Do the CARB certified floorings (PHASE 1 & 2) automatically meet the IEQc4.3 requirements?

Actually, the floorscore program was originally designed as an emissions standard for non-wood or resilient floorscoverings. Although wood products can certify against the Floorscore protocol, CARB certification is the primary emissions standard used by the wood flooring industry.