Supply chain issues have temporarily halted license plate production in Arizona.

Citing a worldwide shortage, the Arizona Department of Transportation says its vendor did not receive a scheduled aluminum delivery and currently has none in stock. The shortage is resulting in a delay in license plates being sent to drivers.

The state contracts with Arizona Correctional Industries, which employs people incarcerated in state prisons, to produce the plates. Now the Department of Transportation says it will work with another vendor, on an interim basis.

ADOT says at least two other states, Nebraska and North Carolina, have also encountered problems with license plate production.

The department says the supply chain issues have impacted their vendors’ ability to make highway signs as well.