In an exciting advancement for technology and transportation in Japan, the government is making significant strides towards the introduction of commercial flying cars. The government is actively engaged in adjusting regulations and protocols to permit and facilitate this futuristic mode of transportation, aiming to make an impact on the global stage of advanced technology. The timeframe, specifics of the regulations, and the technology involved are not mentioned in the headline.

In Japan, advancements in technology are always met with great enthusiasm. The Japanese typically place high value on technology and innovation. With the advent of flying cars, Japan is looking at relieving congestion, improving logistic speed, and leading the way in a new form of domestic and possibly, international transport. The legal and civil aviation authorities are actively involved to ensure the safety of such technological advancements.

In the US and the EU, there has been keen interest in flying cars, but their introduction into the mainstream is still a long way off. While numerous tech companies are working on developing viable models, the legal and regulatory process in these regions tends to be more complex, delaying their commercial use. Japan's swift action demonstrates its agility in adopting and adapting to new technology.