How long may marijuana stay in a person's system and impair driving abilities?

Marijuana's effects on driving abilities can vary significantly based on several factors, including frequency of use, individual metabolism, and the method of consumption. While the psychoactive compounds in marijuana, particularly THC, may produce impairment shortly after use, traces of THC can remain detectable in the body for a longer period.

Typically, for occasional users, THC can remain in the system and potentially impair driving for about 1 to 3 days after use. However, in regular or heavy users, it might take longer for the substance to completely clear from the body—sometimes up to several days or even weeks. Therefore, the answer that indicates 2 days aligns with the understanding that for many individuals, marijuana could impair driving capabilities beyond the immediate effects, particularly within that time frame.

This highlights the importance of understanding not just the immediate impairment effects of marijuana but also the potential for lingering effects that could affect safe driving practices even days after consumption. It is crucial for drivers to be aware of their own history with the substance and the law regarding driving under its influence.