On Friday, March 20, 2020 Customs announced that it was accepting requests for short-term relief from payment of estimated duties, taxes and fees due to the COVID-19 emergency, as discussed here.
Nevertheless, on March 26, 2020, Customs issued “Additional Guidance for Entry Summary Payments Impacted by COVID-19” that revised the information and

Short term case-by-case relief to approved importers: On Friday, March 20, 2020 at 4:52 PM Customs issued the following message: