The City of Chicago has specific codes regarding the construction and operation of exit signs. Chicago requires exit signs to be constructed of 20 gauge steel white housing, with red lettering of the word "EXIT" or "STAIRWELL."
The directional arrows must be below the word "EXIT", as opposed to the left and right of the word. Chicago-approved exit signs must be approved by the Chicago Department of Buildings.
Beghelli offers a full line of Chicago approved emergency lighting and exits.