Assembly Bill 249 aims to prohibit the abandonment of boats on the waters of Wisconsin or adjacent riparian land, establishing clear definitions and penalties for such actions. The bill defines "abandon" as either leaving a boat unattended for more than seven consecutive days without intent to return or maintaining a boat in a state of disrepair that poses hazards to navigation, public safety, or environmental health. If a law enforcement officer identifies an abandoned boat, they are required to notify the owner, who must then remove the boat within 30 days. Failure to comply can result in penalties including imprisonment for up to nine months and fines up to $10,000.

Additionally, the bill introduces new legal provisions under sections 30.542 and 30.80 (7) of the statutes. It mandates that individuals who violate the abandonment prohibition must also complete a safety course before operating a boat. If a person has a valid safety certificate at the time of sentencing, it will be revoked, and they will be required to obtain a new certificate. The bill emphasizes the responsibility of boat owners to maintain their vessels and outlines the consequences for neglecting this duty.