From our friends at ATA:
Following President Trump’s address, we understand that FMCSA will be issuing an emergency proclamation suspending federal hours-of-service (HOS) regulations for operations engaged in emergency relief related to COVID-19. We expect FMCSA to post the specific criteria of this proclamation on their website, including clarifying information about the types of loads and work covered. Motor Carriers and drivers remain responsible for ensuring that drivers are receiving sufficient rest and are not operating fatigued. ATA will continue to monitor any emergency proclamations and will notify ATA membership as soon as they become available.

ALAN Note: FMCSA emergency declaration waivers are posted here: https://www.fmcsa.dot.gov/emergency-declarations