All, I have gotten additional clarification 
from Deb Crawford and Aurali Dade about access to research labs and facilities after 5pm tomorrow. You do not need a waiver as long as your visits to the research lab/facilities will be infrequent/intermittent in response to an unanticipated need such as rebooting a computer or picking up something you didn’t realize you would need at home. You must use proper social distancing and sanitizing practices, of course. A waiver is needed if you want to perform research in a lab/facility, spend a significant amount of time in a research lab/facility, or access a research lab/facility on a regular basis for maintenance activities such as to replenish liquid nitrogen every couple of weeks.

Of course, this guidance is subject to change as the university responds to the COVID-19 emergency.

Regards.

Dr. Art Pyster
Associate Dean for Research and Professor
Volgenau School of Engineering
George Mason University

Fellow and Founders Award Recipient
International Council on Systems Engineering

Founders Award Recipient
Systems Engineering Research Center

703-717-8110