Temporary final rule
The US Coast Guard promulgated a temporary rule establishing a safety zone on a portion of the North Branch of the Chicago River due to soil sampling in this area.
The safety zone will be in effect between 7 a.m. and 5 p.m. local time on March 1, 2, and 3. 76 Fed. Reg. 11334.
To view the rule plsease click here
Source: USCG