About MARIKO SHINOHARA
Mariko Shinohara is a CBP-licensed customs broker based in Pomona, California, operating under the DBA Pacific Ocean CHB. Licensed under filer code 9M8, Shinohara serves importers throughout the Los Angeles metropolitan area and Inland Empire region. Pomona's proximity to the ports of Los Angeles and Long Beach — among the busiest container ports in the United States — positions this broker to assist businesses importing goods from Asia and beyond. Whether you need customs entry preparation, HTS classification, or compliance guidance, Mariko Shinohara brings individual broker accountability to the customs clearance process. Importers in the San Gabriel Valley and surrounding areas looking for a locally based, licensed customs broker can reach the office directly at 626-333-2389.
Mariko Shinohara is a licensed U.S. customs broker operating out of Pomona, California, under the DBA Pacific Ocean CHB, with a CBP filer code of 9M8. Located in the heart of the Inland Empire and San Gabriel Valley, Shinohara's operation is well-positioned to serve the heavy import corridor serviced by the Ports of Los Angeles and Long Beach — collectively the largest port complex in the Western Hemisphere and the primary gateway for goods arriving from Asia, including China, Japan, South Korea, and Southeast Asia.
For importers navigating the complexities of U.S. customs regulations, having a licensed broker with local knowledge of Southern California's logistics infrastructure is a practical advantage. Mariko Shinohara can assist with customs entry preparation, accurate Harmonized Tariff Schedule (HTS) code classification, and ensuring compliance with CBP requirements through the ACE portal. Proper HTS code assignment is critical not only for determining applicable customs duties but also for ensuring admissibility of goods under various trade programs.
Importer Security Filing (ISF) — commonly known as the 10+2 filing — is a mandatory pre-arrival requirement for ocean shipments entering the United States. Understanding ISF filing requirements and submitting accurate data on time is essential to avoiding CBP penalties. Shinohara's proximity to one of the country's busiest port environments means familiarity with the timelines and logistics that ISF compliance demands.
Importers moving commercial shipments through Southern California may also benefit from guidance on customs bond requirements, which CBP mandates for most formal entries. Additionally, companies with established import histories may qualify for duty drawback claims — a program that allows recovery of duties paid on imported goods that are subsequently exported or destroyed. Navigating the duty drawback program requires careful documentation and coordination, areas where a licensed customs broker adds measurable value.
The office is located in Pomona, CA and can be reached at 626-333-2389. Importers in the greater Los Angeles area, San Gabriel Valley, and Inland Empire who need customs clearance support, HTS code assistance, or general guidance on US import requirements are encouraged to make direct contact.
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Frequently Asked Questions
What is Mariko Shinohara's CBP filer code and where are they located?
Mariko Shinohara holds CBP license/filer code 9M8 and is based in Pomona, CA, operating under the DBA Pacific Ocean CHB. The office can be reached at 626-333-2389.
What types of importers does Pacific Ocean CHB typically serve?
Given the Pomona, CA location near the Ports of Los Angeles and Long Beach, this broker is well-suited for importers bringing goods through the Southern California port complex, particularly shipments originating from Asia.