What must I do immediately after a traffic accident?

How the answer differs across 6 jurisdictions

The Short Answer

Stop safely, check for injuries, call emergency services if needed, exchange information with all parties, and document the scene — failure to stop or assist may violate German road rules.

Stop immediately
Legal duty
112
Emergency number
30 min
Reporting window for property damage only
100%
Liability in 'dooring' cases (BGH VI ZR 398/20)
SingaporeFull article
The Short Answer

Yes, you must stop immediately after an accident involving injury, death, or damage to property, and exchange your name, address, and vehicle registration number with the other party.

Immediate stop
Required action
24 hours
Police report deadline
S$5,000
Max fine
12 months
Max jail term
The Short Answer

Failing to stop at the scene of an accident is a criminal offence under the Road Traffic Act 1988, s. 170, punishable by up to 6 months’ imprisonment, an unlimited fine, and mandatory disqualification with at least 5–10 penalty points.

Up to 6 months
Maximum jail time
Unlimited fine
Court-imposed fine
5–10 points
Penalty points
Mandatory ban
Driving disqualification
US-CaliforniaFull article
The Short Answer

After a car accident in California, you must stop immediately, exchange information with other drivers, report the crash to law enforcement if there’s injury, death, or $1,000+ property damage, and file an SR-1 form with the DMV within 10 days if required.

Stop immediatel
Legal duty
10 days
SR-1 deadline
$1,000+
Damage threshold
24 hours
Police report window
South KoreaFull article
The Short Answer

Leaving an accident scene without reporting or assisting injured persons is a criminal offence under South Korea’s Road Traffic Act, punishable by up to 5 years’ imprisonment or a fine of up to 20 million KRW.

Up to 5 years
Maximum imprisonment
20M KRW
Max fine
24 hours
Reporting deadline
Article 51
Road Traffic Act
The Short Answer

In Japan, administrative penalties for personal injury accidents are generally not imposed directly on individuals involved in ordinary traffic or workplace injuries; instead, penalties apply to employers or operators who violate safety regulations under laws like the Industrial Safety and Health Act or Road Transport Vehicle Act.

Up to ¥500,000
Max fine (ISHA)
6 months
Max imprisonment (ISHA)
3 years
Max license suspension (RTVA)
Article 31
ISHA penalty provision

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Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: June 2026.