https://help.cbp.gov/s/article/Article-1596?language=en_US
CBP defines “non-essential” travel to the United States as travel that is considered tourism or recreational in nature, which includes sightseeing, gambling and attending cultural events.
“Essential” travel that may continue across the borders under the restrictions includes, but is not limited to:
- U.S. citizens and lawful permanent residents returning to the United States