The International Standard for Phytosanitary Measure (ISPM) No. 15 regulation addresses the international concern of the transportation of pests in packaging that is constructed from solid wood products.  This packaging is typically pallets, boxes, crates, & dunnage.  Wood packaging constructed entirely from man-made products, such as plywood, particleboard, oriented strandboard (OSB), or veneer that have been produced using glue, heat, and pressure, or some combination thereof, is exempt from this regulation.  Lumber, either softwood or hardwood species, is not exempt and is covered by this regulation.  The full regulation can be read here.

ISPM 15 is a regulation that is written and controlled by the International Plant Protection Convention (IPPC).  The IPPC is a part of the Food and Agriculture Organization of the United Nations. 

U.S. Program
In the United States, the governing body for this regulation is the Animal and Plant Health Inspection Service (APHIS) which is a part of the United States Department of Agriculture.  APHIS has authorized the American Lumber Standards Committee (ALSC) to execute and monitor the American program for heat treatment, which is named the Wood Packaging Material (WPM) Program.  ALSC accredits quality control agencies, of which Pacific Lumber Inspection Bureau is one, to offer service to local producers of wood packaging material.

Canadian Program
In Canada, the governing body for this regulation is the Canadian Food Inspection Agency (CFIA).  The CFIA has authorized the Canadian Lumber Standards Accreditation Board (CLSAB) and the Canadian Wooden Pallet and Container Association to execute and monitor the Canadian program.  CLSAB accredits quality control agencies, of which Pacific Lumber Inspection Bureau is one, to offer service to local producers of wood packaging that are also taking part in the production of lumber products.