karōshi line; overtime threshold for death from overwork
Official benchmark used in Japan to determine whether excessive overtime may have caused death from overwork (過労死). Typically defined as more than 80 hours of overtime per month.
See also: 過労死
Workplaces where overtime exceeding the karōshi line has become the norm are dangerous.
The Labour Standards Inspection Office uses the karōshi line as a criterion when deciding on workers' compensation claims.