WINDHAM — The Vermont Department of Public Service is opposing construction of wind testing towers in Windham as contrary to town regulations.

The agency’s objection does not end the process. The state’s Public Service Board must rule on Atlantic Wind LLC’s proposal.

Atlantic Wind requested a certificate of public good from the state to erect three meteorological testing towers — two in Windham and one in Grafton. The towers could be the precursor to Windham County’s first commercial wind turbine site.

Grafton officials have not taken a position on the request, but Windham officials have argued that the town plan prohibits wind development. Atlantic Wind argues the plan is advisory only.