Yes there are. The FDA wants to help users and patients understand the test results and requires the following information to be included:
We have this information in our Instructions for Use in each box of product
Here is the link:
https://www.fda.gov/medical-devices/emergency-situations-medical-devices/faqs-testing-sars-cov-2
Scroll down to the section: What commercial manufacturers are distributing serology test kits under the policy outline in section IV.D of the policy for coronavirus disease-2019 tests.