Traffic rules for bicycles have been tightened in Japan with the coming into force of a revised road traffic law on Friday.

Police say they are raising awareness of the stricter regulations and will crack down on violators.

So-called “distracted cycling” is now banned. Anyone who causes an accident or dangerous situation by using a mobile device while riding a bicycle faces up to a year in prison or a fine of up to 300,000 yen, or about $1,980.

Cyclists who talk on or look at mobile devices while moving will face a prison sentence of up to six months or a fine of up to 100,000 yen, or about $660. This applies even if the offense did not lead to a dangerous situation.

Cycling under the influence of alcohol now carries heavier penalties. Previously, cyclists were not penalized unless they were so intoxicated that they were unlikely to be able to drive properly. Under the revised law, a penalty threshold of 0.15 milligrams of alcohol per liter of breath has been set. Violators face up to three years in prison or a fine of 500,000 yen, or about $3,300.

Vehicles equipped with both bicycle pedals and motorcycle engines, or mopeds, are now classified as motorcycles, even if the driver uses them in pedal mode.

The National Police Agency says there have been more than 49,000 accidents resulting in injury or death involving bicycles this year through September. “Cycling distractions” accounted for 126.