City of Lincoln issued the following announcement on Aug. 16.
The City of Lincoln will be accepting proposals for general cleaning of City Hall, Lincoln Police Station and Lincoln Amtrak Waiting Station. Bid Specifications are listed in the following attachments. Bids will be accepted at City Hall to the City Clerk's office until August 30th @ 5:00 PM.
Conditions of being awarded bid are that all employees must complete a fingerprint and background check with the State of Illinois.
Original source can be found here.