After-test Instructions for Travel to China

When submitting for a health code for travel to China, you must include the following:

  1. *Test Report (NAAT RT-PCR, S Protein Antibody and/or N Protein Antibody)
  2. Electronic ticket or flight itinerary with your full name and detailed flight information
  3. Passport (Personal Information Page) and US Visa or US Driver License or US Green Card
  4. Vaccination Card (or Chinese Vaccination Certificate)
  5. Letter of Commitment on COVID-19 Vaccination

 * = provided by TargetDx Laboratory

To find the Letter of Commitment on COVID-19 Vaccination, go to this link and look for a link to the PDF form:

Health code link:

For non-Chinese residents:

For Chinese residents: scan QR code below in WeChat

Your test result report

You will receive your test result by email from between 7:00 – 9:00 pm. Make sure to check your spam and junk email folders. If you have not received it after 9:00 pm Pacific time, check your portal and in your spam or junk folder in your email. When checking your spam or junk folder, you may need to do a search for “targetdxlab”. Please email us at We will resend your test results within 12 hours.



We wish you safe travels and please tell your family and friends about our COVID test services.