A new World Endurance Championship sporting rule means that no points will be awarded for a race such as last year's Fuji event when no laps were run under racing conditions.
The amendment to the sporting regulations stipulates that "a minimum of two laps must have been completed by the leader outside of a safety car procedure" for half points to be awarded in the event of a race suspension before 75 per cent distance has been reached.
The previous rule did not distinguish between racing laps and those undertaken behind the safety car.
The change follows the Fuji WEC round last October when heavy rain and standing water meant the event was abandoned after three attempts to start the race behind the safety car.
Each of the 16 laps completed in Japan was undertaken behind the course vehicle under yellow-flag conditions.