Travelers from Hawaii are the only ones remaining who can enter Massachusetts without a mandatory 14-day quarantine or a negative test result within 72 hours before arrival.

Allowing travelers from states deemed low-risk into the Commonwealth without any quarantine requirements implies a blind trust in all residents of those states to be virus-free if they are to enter Massachusetts. This is an unsafe policy for several reasons.

Three new states — Wyoming, Washington and Oregon — are now exempt from Massachusetts travel restrictions. Previously, travelers coming from these states were required to quarantine for two...