Forced Hot Air Treatments

International Plant Protection Convention - IPPC

International Regulations :

The International Plant Protection Convention mandates that wood packaging used in international trade must be treated to guard against the distribution of unwanted pests.

Wood Packaging :

any type of packaging such as pallets, Boxes, Skids, Crates, Heavy / Light Packaging or Supporting Material (dunnage) made from Raw Wood Materials.

Excluded from Wood Packaging Materials :

Paper products, products manufactured using heat, glue and/or pressure (plywood, particle board, etc), sawdust, wood wool, shavings and raw wood 6mm or less in thickness

Requirement for Wood Packaging for Export :

All wood packaging for export (except to the U.S.) must have been made from wood heat treated to a core temperature of 56°C for 30 minutes (either before or after manufacture).

Difference Between HT and KD :

Heat treating (HT) is a pasteurizing process. Kiln dried (KD) is moisture reduction. 
Your lumber can be HT or HT-KD. Lumber that is just KD is not eligible.

Process of Packaging Professional Certify the Packaging :

Your supplier will provide their license number in the form of an approved IPPC stamp
on at least two sides of the packaging. The stamp looks like this:
XX is the country of origin (India = IN)
000 is the license number
YY is the treatment
(Heat treated = HT)
(Heat treated dunnage = D-HT)