Even though Pennsylvania continues to difficulty with financing When it comes to ground mass transit and basic highways, some lawmakers are looking to the sky.

In a plot twist that seems lifted from an episode of The Jetsons, legislation to regulate “road planes” — or flying cars — is expected in the state Senate. The aim is to develop a legal framework for this technology which is not yet fully realized.

A bill has not yet been introduced, but co-sponsorship memo from Sen. Marty Flynn, D-Lackawannais seeking feedback on legislation to ensure “highway aircraft are safely integrated into existing traffic systems without causing disruption or safety risks.”

At least two other states – Minnesota and New Hampshire have changed their laws to include safety standards and operating rules for flying cars, and others have legislation in the works. Such vehicles would also need a regulatory framework from federal highways and aviation authorities.

“Road planes” are those that can travel on wheels and then take off into the sky, and vice versa. Although several companies have said they are developing such vehicles – and solicited investors to back them – none have yet produced them on a large scale.

One company, Samson Sky, presented its “Switchblade” flying car to a legislative subcommittee in New Mexico last year, according to KSFR radio. The company says he has a working prototypeand last year it accepted 2,500 pre-orders for vehicles with a starting price of $170,000.

Another company, Alef Aeronautics, has been developing cars since 2015 and obtained testing authorization from the Federal Aviation Administration last yearalthough it’s unclear what – if anything – the company actually got off the ground.

“While the implications of these innovations may not yet be fully realized, there is now a significant need for legislation that lays the foundation for the integration of road aircraft into our Commonwealth,” Flynn wrote in his memo .

This wouldn’t be the first time Pennsylvania lawmakers have created regulatory schemes for things that don’t exist. Earlier this year, the legislature passed and Governor Josh Shapiro signed: a bill creating rules for “carbon capture” technology – which removes greenhouse gases from industrial emissions and stores carbon byproducts underground.

Although several large-scale carbon capture projects are underway, the technology has never been developed at the scale necessary to have the predicted impacts, and recent third-party analyzes have suggested the reduction in carbon pollution could be much less than companies claim.