As the U.S. enters “what may well be the toughest and deadliest period of the virus,” President Joe Biden is putting forth a national COVID-19 strategy to ramp up vaccinations and testing, reopen schools and businesses and increase the use of masks — including a requirement that they be worn for travel.

A day after being sworn in, President Joe Biden is rolling out a national strategy to fight COVID-19, reopen the nation’s schools and restart the U.S. economy. His plan calls for an expansion of coronavirus testing, accelerated vaccine distribution and new action to prepare for future biological threats. The plan is tied to a $1.9 trillion plan that Biden unveiled last week to combat the pandemic.