All Library of Congress systems will be taken offline temporarily beginning 
Friday evening, including the EAD Listserv.  Service is expected to be 
restored by Tuesday.

The Library of Congress has planned extensive electrical work and power 
maintenance for this coming weekend.  As a protective measure, all Library 
systems will be powered down.  The maintenance period is scheduled for 
completion by Tuesday morning, when it is expected all Library systems will 
have been restored to normal operation.  Though it is anticipated work will 
not be fully completed until late Monday or early Tuesday, services will 
begin coming back online before then.

We regret any inconvenience this may cause and thank you in advance for 
your patience.