Mask Policy

Effective November 1, 2021

All individuals, regardless of vaccination status, must wear a face mask in indoor spaces at Colorado School of Mines with exceptions as noted below.

Examples of indoor spaces where masks are required include, but are not limited to: classrooms, hallways and stairways, conference rooms, teaching and research laboratories, library and other communal study areas, shared workspaces, common areas, The Mines Rover, and any other indoor places designated by signage.


Masks are not required in the following facilities or situations:

  • Indoor spaces that are not publicly accessible (e.g., residence halls and other controlled access facilities, private offices and other private spaces when a vaccinated individual is alone, etc.)
  • While actively eating meals or drinking. Please note that eating is not permitted during classroom instruction.  Drinking is permitted in classrooms but masks may only be removed while actively consuming the beverage.
  • Vaccinated instructional faculty may choose to not wear a mask while they are actively engaging in indoor instructional activity and are separated by at least 6 feet from the nearest person.
  • Vaccinated researchers who are engaged in laboratory work and who are either alone or separated by at least 6 feet from the nearest person in their lab. Researchers should have a mask ready to put on when a 6-foot distance cannot be maintained.
  • Vaccinated individuals when alone in a shared space such as a cubicle bank, conference room or study room. Individuals should have a mask ready to put on when another person enters the shared space
  • The Student Recreation Center, Motion Lab, Volk Gymnasium, Steinhauer Field House, and other Mines Athletics facilities where individuals engage in high intensity activities.
  • Individuals who have a medically approved accommodation because of a disability as authorized by Disability Support Services (for students) and Human Resources (for employees), are exempt from this requirement.
  • Emergency responders who are actively engaged in a public safety response activity, including law enforcement personnel, firefighters, or emergency medical personnel, are exempt from this requirement.
  • Individuals who are asked to temporarily remove their face covering for identification purposes as part of a particular service requiring legal identification should do so.

While the level of COVD-19 transmission in Jefferson County remains high according to the CDC COVID-19 Data Tracker County View website, masks are strongly recommended and encouraged in all settings where masks are not otherwise required. 

Current Mask Policy (Effective through Oct. 31, 2021)

Face masks are required for all people, regardless of COVID-19 vaccination status, while participating in indoor classes, course laboratories (including computer labs), and testing rooms. Instructors are not required to wear masks when actively teaching and physical distancing can be maintained (6 ft or greater).

Masks are also required in the following settings, regardless of vaccination status:

  • When transitioning between classes or laboratories indoors, as these brief time periods usually involve a large gathering of people.
  • At the Student Health Center and the Student Outreach & Support/Disability Support Services Center as well as the Mines Testing Center.
  • On buses and shuttles, including but not limited to Mines ROVER and transportation designated for Mines sponsored classes or activities.

For all other situations, we are currently mirroring Jefferson County Public Health guidance that face masks are strongly recommended for all regardless of vaccination status in public indoor spaces while Jefferson County is in the substantial transmission category.

Masks are not required for anyone when outdoors on campus, unless specifically stated as a requirement to attend or participate in an outdoor special event, organized gathering or activity.

Anyone who feels more comfortable wearing a mask in settings where masks are not required is encouraged to do so.

Requests to implement additional or different mask requirements for activities or specific indoor spaces should be submitted for approval to the area’s appropriate VP.

Any additional mask requirements established by the State, Jefferson County or City of Golden through a public health order, law or ordinance are in effect at Mines.