CBP has issued a link to the FAQ’s on the Section 301 duties on China.
FREQUENTLY ASKED QUESTIONS – Â Frequently asked questions about the Section
301 trade remedies can be found by going to:
FOR FURTHER INFORMATION
For further information, please refer to the U.S.TR’s Notice of Action and
Request for Public Comment Concerning Proposed Determination of Action
Pursuant to Section 301: China’s Acts, Policies, and Practices Related to
Technology Transfer, Intellectual Property, and Innovation, issued on June
15, 2018.  https://www.gpo.gov/fdsys/pkg/
Questions related to Section 301 entry filing requirements should be
emailed to traderemedy@cbp.dhs.gov. Questions from the importing community
concerning ACE rejections should be referred to their Client
Representative.