HARRISBURG — Two Pennsylvania agencies are appealing a court ruling that threw out new limitations on the ability of municipalities to use zoning rules to control natural gas drilling activity.

The Public Utility Commission and the Department of Environmental Protection filed the appeal late Friday, a day after Commonwealth Court had issued its decision that the law’s changes unfairly affected people who live near drilling activity.

The appeal asks the state Supreme Court to review whether the plaintiffs were entitled to sue, whether the ruling was based on sound law and whether the lower court should have stopped the law’s provisions from being enforced.

Seven municipalities sued over the law, arguing it took away their power to protect landowners.