In Maryland, what does the phrase "driving while impaired" refer to?

The phrase "driving while impaired" in Maryland refers specifically to operating a vehicle with a blood alcohol concentration (BAC) that exceeds a certain threshold, albeit not necessarily at the level classified as "driving while intoxicated." This term encompasses situations where a driver may have a slightly elevated BAC, typically between 0.04% and 0.08%. It indicates that the driver's ability to operate a vehicle is impaired to some degree due to alcohol consumption, even if they are below the legal limit that would classify them as fully intoxicated.

This concept is critical for understanding the laws surrounding driving under the influence, as laws can impose varying penalties based on one's BAC and how it affects driving abilities. It highlights the idea that even lower levels of alcohol consumption can impair driving, making it unsafe and potentially illegal.