Table.

Lockdown criteria and policy levers used at the US Air Force Academy during the COVID-19 pandemic, August 12–December 4, 2020 ^a

Response components	Phase 0: baseline COVID-19 operations	Phase 1: contain the spread	Phase 2: soft lockdown	Phase 3: full lockdown
Objective	COVID-19 mitigation and surveillance	Reinforce mitigation compliance, 50% testing increase	Increase testing, reduce interactions by 50%	Identify most infections and reset
Criteria	Number of new weekly infections <5	Number of known active infections >10	Number of known active infections >20	Number of known active infections >50
Surveillance testing	4% daily; 16% weekly; Tuesday through Friday	6% daily; 24% weekly; Tuesday through Friday	9% daily; 45% weekly; Monday through Friday	15% testing daily; 100% weekly; Sunday through Saturday
Students	• Full-use common areas • Full freedom to associate	Limit social interaction to study groups, clubs, etc	• Restricted to living areas and quads • Lounge 50% capacity • Minimum trips to grocery	• Restricted to room • Takeout dining only
Training	All passes	• Day pass only • Overnight pass by exception	• Off-base access by exception • Military training by distance only	Off-base passes by exception
Academics	50% Remote teaching	50% Remote teaching	75% Remote teaching	• 100% Remote teaching • In-person laboratories by exception
Athletics	Gym: 25% capacity	Gym: 25% capacity	• Noncontact physical education courses only • Gym: 15% capacity	• Remote physical education only • Gym closed
Other	Sit-down restaurants and retail shopping permitted	Curbside pick-up only	Intramurals canceled	• Clubs virtual • Facilities closed

^aProtocols recommended by the Centers for Disease Control and Prevention, such as wearing face masks and social distancing, were maintained across all phases. Once in Phase 3 (full lockdown), it was possible to revert to previous phases after at least 1 week post-lockdown testing, and when the number of known active infections met the previous phase threshold.