• Companies should review a variety of load factors when determining which security device will be most effective.

Cargo security devices include a variety of options. When determining which security seal to use, decision makers must consider:

• The level of risk associated with a specific load,
• Contracts with customers,
• Environmental exposures, and
• Obligations for participation in security initiatives.

There are several types of security devices to compare for a load, including:

• Padlocks. When a company-issued padlock is used to secure the load, a strict key control policy must be in place. The keys should be marked as “don’t duplicate.”
• Gladhand lock and kingpin locks. These two devices are used to immobilize trailers so trailers cannot be moved. Criminals cannot escape with the freight through stealing the company’s trailer.
• Security seals. Whatever level of sophistication, security seals still fall into one of two categories:
  • Indicative seals:
    • Designed to alert users of entry into a trailer,
    • Not strong enough to deter or prevent intrusion,
    • Manufactured for a one-time use,
    • May be used with an accompanying lock,
    • Constructed of plastic, wire, or thin strips of sheet metal, and
    • Marked with unique serial numbers or an identifier.
  • Barrier (high-security) seals:
    • Designed to deter intrusion,
    • Constructed of metal or metal cable, and
    • Require sturdy bolt cutters or cable cutters for removal.