WASHINGTON — U.S. Customs and Border Protection (CBP) has issued a security bulletin, urging all C-TPAT members to be more vigilant.

While the notice is focused on US-Mexico cross-border trade in light of a series of drug seizures, CBP is encouraging all C-TPAT shippers and carriers to review their security systems.

A few companies, says CBP, have failed to follow established security procedures, and lack corporate oversight.

Customs listed the following steps that C-TPAT members could take to reduce the threats to their supply chain corridors:

— Ensure oversight and accountability of the cargo loading and sealing process by using cameras or other suitable monitoring devices at cargo loading areas; as well as ensure that all conveyance hardware and fastening devices are inspected for overall security and deterrence of unauthorized access.

— Where deficiencies are present, harden all fastening-access devices and consider using more stringent security devices to secure trailer doors.

— Audit and verification of employee screening processes, to include periodic reviews; also, consider rotating personnel assigned to operationally sensitive positions, such as dispatchers.

— Assess areas of potential weaknesses and vulnerability, with specific attention on addressing potential delays and/or opportunities for security breaches.

— Work more closely with service providers to develop written and verifiable procedures to track conveyances from point of origin to final destination, while establishing route times from the manufacturing site to various points in the transportation flow. Develop verifiable procedures to address those instances in which a driver does not check in within established time parameters, and prohibit drivers from making unauthorized stops.