Final answer:
Negligent Driving-1st degree under RCW 46.61.5249 is defined as driving negligently in a manner that may endanger people or property, coupled with the effects of having consumed intoxicants such as alcohol or drugs.
Step-by-step explanation:
Negligent Driving-1st degree as codified in RCW 46.61.5249 is a misdemeanor traffic offense in the state of Washington. It is defined as operating a motor vehicle in a manner that is both negligent and endangers or is likely to endanger any person or property, and exhibits the effects of having consumed alcohol, marijuana, or any drug. The negligence aspect references a lower standard of care than reckless driving which involves a more willful disregard for safety. Moreover, endangerment refers to the potential harm that could be caused to others, not necessarily that harm has occurred. The addition of being under the influence to any degree distinguishes it from general negligent driving offenses that do not involve substances.