At the
Port of Los Angeles (which, together with the Port of Long Beach forms the largest port complex in the U.S.),
only a small fraction of arriving cargo containers are physically inspected. The exact percentage varies by source and inspection type, but the broadly cited figures are:
• Physical inspections:
Only about
2 % (or less) of containers unloaded at U.S. ports are physically opened and examined by customs officials. This low rate reflects the challenge of physically inspecting a huge volume of cargo without disrupting commerce.
GovInfo+1
• X‐ray or scanner screenings:
Historical reporting (e.g., at Los Angeles/Long Beach) indicates roughly
about 6 % of containers might be selected for scanning (e.g., X-ray / radiation screening) upon arrival, with a smaller fraction of those then unloaded for detailed inspection.
Los Angeles Times