Nissan will resume domestic production of its vehicles following a suspension due to an inspection scandal, which saw the company admit that staff lacking proper authorisation conducted the final inspections for vehicles intended for the Japanese domestic market, according to Channel News Asia.

“Nissan regrets any inconvenience and concern this has caused to its valued customers and other stakeholders in Japan,” the Japanese automaker said in a statement. The company stopped production in October at its six plants in Japan for the consolidation of its inspection lines in order to comply with Japanese transport ministry requirements, according to a Reuters report at the time.

“Nissan has taken preventive measures aimed to ensure final vehicle inspection conforms with Japanese regulations,” the company said. The production scandal has substantially impacted on its car sales, however, with figures last month seeing a 55% year-on-year drop.

The Japanese transport ministry had found that uncertified technicians at Nissan’s plants were using the stamps of certified technicians for the signing off of final vehicle inspections, which violates ministry guidelines. This, however, does not affect exported vehicles, as the certification process does not apply for vehicles meant for overseas markets.