BOSTON (AP) — The Massachusetts motor vehicle inspection system is expected to remain down for another week, prompting state officials to give drivers with expired March stickers a grace period to obtain an up-to-date sticker, officials said.

The Registry of Motor Vehicles announced late Friday that a malware attack March 30 on the vendor for the system, Applus Technologies, isn’t expected to be fixed until April 17.

“The RMV will hold the vendor accountable for this disruption and is working with Applus to restore services as soon as possible,” the registry said in a statement. “Applus has indicated that their systems will be operating by Saturday, April 17th in Massachusetts and the Registry will continue working with the vendor to meet this goal.”

The system conducts about 15,000 vehicle emissions and safety inspections per day.

Vehicles with expired inspection stickers from March will have until April 30 to obtain an inspection, and the registry has asked law enforcement not to cite drivers with expired March stickers.

Applus said it is committed to fixing the problem.