Effective immediately: Riders on Mountain Transit vehicles must wear face coverings that secure behind the ears or back of the head and encompass the mouth and nose. No one may board a Mountain Transit vehicle without a face covering Violation of this order is a crime punishable by up to a $1,000.00 fine or imprisonment of up to 90 days, or both. The San Bernardino County Acting Health Officers Order may be viewed at http://wp.sbcounty.gov/