[the_why_of_y]

Executive order 13962 is still in effect.

https://www.federalregister.gov/documents/2020/12/11/2020-27...

Sec. 2. Policy. It is the policy of the United States to ensure Americans have priority access to free, safe, and effective COVID-19 vaccines. After ensuring the ability to meet the vaccination needs of the American people, it is in the interest of the United States to facilitate international access to United States Government COVID-19 Vaccines.

[jjcon]

Which in no way directly excludes the export of vaccine to other countries - as I have mentioned the US has directly exported to canada and mexico and its properties are creating vaccine for over 70 countries including every country in the EU.

[the_why_of_y]

Can you point to a source for your claim that the US has exported (present perfect) vaccines to anybody? All I can find is news articles from about 10 days ago about plans to export vaccines, not mentioning a date.