These ISO-compliant container labels fully adhere to international maritime shipping regulations and will not cause delays in customs clearance.

Featuring 3M high-strength adhesive backing, they adhere firmly to steel container surfaces and will not peel off even during heavy rain or strong winds.

The printed surface is UV-resistant, ensuring clear text that will not fade even after prolonged exposure to sunlight, with legibility lasting over 5 years.

Custom Durable Series‌

Fully customizable container labels that support the printing of company logos, special warning symbols, and QR codes.

Made from PVC/PET material with a matte or light-colored film coating, these labels are tear-resistant, scratch-resistant, and can withstand rough handling.

Ideal for labeling new containers and refurbishing used containers.

If you need to purchase container labels, you can contact relevant suppliers through platforms such as Baidu AiCaiGou to place custom orders, which support materials like PET and PVC as well as UV printing processes. Beyond procurement channels, understanding the compliance requirements for container labels is even more critical, as this directly affects whether cargo can clear customs smoothly and be transported safely.

Which Labels Must Be Affixed to Containers

Container labels are primarily divided into identification marks, operational marks, and transit marks. They must be affixed in accordance with the international standard ISO 6346 and the national standard GB/T 1836 to ensure the information is clear and legible.

1. Identification Mark: This is the container’s “ID,” consisting of an 11-digit code.

    - Container Owner Code: The first 3 letters indicate the container owner; the 4th letter, “U,” denotes a standard container.

    - Serial Number and Check Digit: The middle 6 digits are the container’s unique registration code; the final digit, enclosed in a box, is the check digit, used to verify the accuracy of the container number.

    - Size Type Code: Typically a 4-character code (e.g., 45G1), indicating the container’s length, height, and type (e.g., high cube, reefer).

2. Operational Markings: These provide guidance to operators for safe handling.

    - Weight and Volume Markings: The container doors must be marked with the maximum gross weight (MAX GROSS), tare weight (TARE), payload (PAYLOAD), and volume (CU.CAP), with units displayed in both kilograms and pounds.

    - Oversize and Overweight Warnings: Containers exceeding 2.6 meters in height must display an oversize marker with a black border on a yellow background; containers with a gross weight exceeding 30.48 metric tons must display a triangular “SUPER HEAVY” marker.

    - Electric Shock Warning: Tank containers or ladder access points must display a black triangular warning sign on a yellow background to warn climbers of the risk of electric shock.

3. Clearance Markings: Ensure the container complies with regulations for international transport.

    - Safety Certification Plate: Also known as the CSC plate, this certifies that the container complies with the International Convention for Safe Containers.

    - International Union of Railways (UIC) Marking: For rail transport in Europe, a UIC marking bearing the letters “ic” must be affixed.

What Are the Special Requirements for Transporting Dangerous Goods?

When transporting dangerous goods, conspicuous dangerous goods labels must be affixed to the exterior of the container and must comply with the requirements of the International Maritime Dangerous Goods Code (IMDG); otherwise, the shipment may be refused or subject to fines.

1. Primary and Supplementary Hazard Labels:

    - Diamond-shaped hazard labels: Measuring no less than 250 mm × 250 mm, these must be affixed to all four sides of the container and display the hazard class number (e.g., Class 3 flammable liquids, Class 9 miscellaneous).

    - Secondary Hazard Labels: If the cargo poses secondary hazards (such as toxicity or corrosiveness), secondary hazard labels must be affixed next to the primary hazard labels.

2. Specific Markings and Numbers:

    - UN Number: For dangerous goods requiring such display, the United Nations number (e.g., UN3480) must be displayed on the exterior of the container.

    - Lithium Battery-Specific Markings: Lithium batteries shipped by sea must bear a rectangular UN marking with a red diagonal border, printed with a 24-hour emergency phone number, and must also display the Class 9 diamond-shaped hazard label.

    - Marine Pollutant Marking: If the cargo is a marine pollutant, the corresponding fish-and-tree symbol must be affixed.

3. Affixing Specifications:

    - Location: Labels must be affixed approximately 1.5 meters above the bottom rail, centered, and must not obscure the text or markings on the container door.

    - Durability: Labels must remain clearly legible after being immersed in seawater for at least 3 months; they must be removed or covered immediately after unloading.