SAN FRANCISCO (KCBS)— AT&T is following through with a plan to sue the City of San Francisco over their objection to the locations of 4-foot-high utility boxes on city sidewalks.

The telecommunications company told KCBS earlier this month they were considering filing a lawsuit if the Board of Supervisors followed through with proposed legislation giving the public more input on the sites and to place the boxes on private property or in alleyways when possible.

Last week the board voted unanimously to approve Supervisor Scott Weiner’s legislation.

The San Francisco Chronicle reports the lawsuit was filed in San Francisco Superior Court this week. It accuses the city Department of Public Works of violating city regulations and state law by denying permits for 26 boxes since November.