ISPM 15 and Its Impact on Wooden Components of Containers

18. 7. 2025

In the world of global logistics, wooden packaging represents a critical risk for the spread of invasive pests and diseases that can cause extensive ecological and economic damage. To prevent this, the international standard ISPM 15 (International Standards for Phytosanitary Measures No. 15) was established, which set clear rules for the treatment and use of wooden packaging material used in international trade. This glossary is a detailed guide to all aspects of ISPM 15, particularly its impact on wooden components of containers.

Main Objectives and History of ISPM 15

ISPM 15 was developed by the International Plant Protection Convention (IPPC), which falls under the United Nations Food and Agriculture Organization (FAO). Its objectives are:

  • Prevent the introduction of dangerous pests into new areas through wooden packaging material.
  • Establish uniform rules recognized in more than 180 countries worldwide.
  • Provide long-term protection for agriculture, forestry, and biodiversity in destination countries.

The first version of ISPM 15 was created in 2002, with subsequent revisions responding to practical experience and developments in environmental protection (for example, restrictions on methyl bromide as a harmful gas for the ozone layer).

Institutional Framework and Responsibilities

Key Organizations

AbbreviationName (English)Role in ISPM 15 System
IPPCInternational Plant Protection ConventionFounder and administrator of the standard
FAOUnited Nations Food and Agriculture OrganizationTechnical and administrative support for IPPC
CPMCommission on Phytosanitary MeasuresApproval and revision of ISPM standards
NPPONational Plant Protection OrganizationInspection and certification in each country (e.g., ÚKZÚZ in Czech Republic)

Each country has its own NPPO, which:

  • Authorizes and registers facilities for wood treatment.
  • Conducts regular audits and inspections.
  • Ensures sampling and supervision at borders.

Scope of ISPM 15

What Falls Under Regulation?

ISPM 15 standard applies to all wooden packaging material (WPM – wood packaging material) thicker than 6 mm used in international trade. Typical examples:

  • Pallets (EUR, non-standard, special sizes)
  • Boxes, crates (for machinery, technology, parts)
  • Cable drums and spools (winding equipment)
  • Dunnage wood – loosely stowed wood for cargo securing
  • Pallet collars – practical products that allow creation of “pallet containers” of various heights

Wooden Components of Containers

  • Permanently attached wooden parts (for example, container flooring): ISPM 15 does not apply to them if they are permanently connected to the container.
  • Loose wooden elements (dunnage, reinforcements, braces): Must be treated and marked according to ISPM 15.

Exemptions from Scope

ISPM 15 does not apply to:

  • Products made from glued, pressed, or otherwise processed wood (OSB, plywood, particleboard, MDF, veneer)
  • Wood with thickness ≤ 6 mm
  • Wine and spirits barrels (due to heat treatment during manufacturing)
  • Gift boxes made from processed wood
  • Sawdust, wood wool, shavings
  • Permanently built-in wooden parts of transport vehicles

Permitted Methods of Wood Treatment

Basic Requirement: Debarking

All wood must be thoroughly debarked before treatment. Only small, clearly separated bark remnants are permitted (width < 3 cm, or area up to 50 cm²).

Permitted Procedures

MethodAbbreviation on MarkDescription and RequirementsAdvantages and Disadvantages
Heat TreatmentHTHeating wood core to minimum 56 °C for 30 minutesEcological, widely accepted, no chemicals
Methyl Bromide FumigationMBExposure to methyl bromide in a sealed chamberFast, but banned in EU due to environmental concerns
Dielectric HeatingDHMicrowave or high-frequency heatingModern, energy-intensive
Sulfuryl Fluoride FumigationSFAlternative to MB, limited useToxic, rarely used

Note: In the Czech Republic and entire EU, methyl bromide must not be used; heat treatment is preferred.

ISPM 15 Marking: The “Wheat Stamp”

After successful treatment, each piece of wooden packaging material must be marked. The mark must be:

  • Clearly legible.
  • Permanently applied (by burning, printing with indelible ink).
  • Placed on two opposite sides.

Mark Structure

Mark ElementDescriptionExample
IPPC LogoSymbol of wheat ear with letters IPPCIPPC Logo
Country CodeTwo-letter ISO country codeCZ
Registration NumberNumber of facility approved by NPPO12345
Method CodeHT, MB, DH, SFHT

For example:

IPPC CZ-12345 HT

  • DB (Debarked) – no longer used; debarking is mandatory for all methods.

Practical Application of ISPM 15 in Container Logistics

Obligations of Exporters and Manufacturers

  • Purchase only certified ISPM 15 packaging from registered suppliers.
  • Check legibility and correctness of marks on all wooden components.
  • Use only treated and marked dunnage (dunnage wood).
  • If manufacturing own packaging, it is necessary to have an approved facility and records (in Czech Republic supervised by ÚKZÚZ, in USA for example by ALSC).

Audits and Supervision

  • Every ISPM 15 operator is audited monthly by an inspection agency.
  • Records of purchased and used material must be accurate and traceable.
  • Penalties for discrepancies can be high, including license revocation.

Repairs, Reuse, and Reprocessing

  • If packaging is damaged and repaired with new wood, it must be treated and marked again.
  • Old marks must be removed or made illegible.
  • Reuse is permitted if the packaging is not damaged.

Risks and Consequences of Non-Compliance with ISPM 15

If packaging does not meet ISPM 15 requirements:

  • The shipment may be returned, destroyed, or treated at the sender’s expense.
  • Delays, increased costs, and damage to business relationships may occur.
  • Presence of pests or bark is a serious violation, often resolved by return or destruction.

Trends and Ecological Aspects

  • In EU and USA countries, the trend is reduction of chemical treatment and maximum preference for heat treatment.
  • Growing use of alternative materials (plastic, paper, OSB, plywood), which are exempt from ISPM 15.
  • Traceability and electronic records are becoming increasingly important.

Most Common Mistakes and Practical Recommendations

  • Use of unmarked or incorrectly marked wood (for example, with dunnage).
  • Insufficient records during own pallet and box manufacturing.
  • False assumption that it is enough to buy “debarked wood” and build packaging – ISPM 15 mark can only be applied by a certified facility.
  • Overlooking the obligation to mark short-term or “one-time” shipments.

Technical Parameters of ISPM 15 Pallet Collars (Practical Example)

Dimension (mm)Weight (kg)MaterialISPM 15 CertificationApplication
1200 × 80018–19Spruce, pineYESCreation of “pallet container”, flexible height, easy storage


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