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Boats and Motorcycles

Boating or operating a motorcycle under the influence of drugs or alcohol is illegal in the state of California. While the definition of vehicle tends to vary from state to state, the California Vehicle Code defines a vehicle as “a device by which any person or property may be propelled, moved, or drawn upon a highway, excepting a device moved exclusively by human power or used exclusively upon stationary rails or tracks.” Under this definition, boats and motorcycles are considered vehicles.

Motorcycling Under the Influence

Motorcycling under the influence is very similar to driving under the influence. If a person is under the influence of drugs or alcohol, and they are operating a motor vehicle, such as a motorcycle, they are subject to California DUI laws and consequences.

After a person is arrested for motorcycling under the influence, the officer will take possession of his or her driver’s license.

During the arrest or after being released from jail, the individual will be served with a pink suspension notice or a temporary license form entitled, Form DS-367. After the date of arrest, the person only has 10 days to schedule a hearing with the California Department of Motor Vehicles to contest his or her license suspension. Failure to schedule a hearing will result in automatic license suspension.

The DMV officer has the burden of justifying the license suspension. In order to justify the suspension of a driver’s license, the DMV officer must conclude that the arresting officer had probable cause and lawfully made the arrest. He must also find that the BAC results of the driver were 0.08% or higher. The DMV hearing is very technical, and while the arresting officer may testify at the hearing, the final decision will be based upon the facts presented.

Motorcycling Under the Influence Penalties

If a person is arrested for DUI, it will appear on his or her criminal record. A damaged criminal record may be viewed negatively by future employers and landlords, and can also impact a person’s educational opportunities. A person who is convicted of DUI is subject to harsh legal consequences, such as jail time, fines, license suspension, DUI School, and/or probation. Sentences can be enhanced if the driver refused to take the BAC test, had a BAC result of 0.20% or higher, had a minor under the age of 14 in the vehicle, or had prior DUI convictions.

Boating Under the Influence

According to California’s Harbors and Navigation Code, it is illegal to operate a boat with a blood alcohol content of 0.08% or greater. It is illegal to operate a commercial craft with a BAC of 0.04% or higher.

Boating Under the Influence Penalties

A person who is convicted of BUI is subject to harsh legal consequences, such as jail time, fines, license suspension, DUI School, and/or probation.

San Francisco DUI Attorney

If you have been arrested for DUI in San Francisco, obtaining a qualified attorney is the most important decision you can make. A DUI attorney can protect your rights, inform you of your legal options, investigate the conditions of your arrest, and question law enforcement officer and independent witnesses. A skilled attorney can also provide the resources and aggressive defense you will need to successfully fight your DUI charges.

The Law Office of Robert Tayac has been helping people charged with DUI in San Francisco for over twenty years. Mr. Tayac has the education, training, and experience to defend you in this case. Mr. Tayac can also schedule your hearing with the DMV and represent you at the hearing. Remember, you only have 10 days to prevent your driving privilege from being suspended.

Contact The Office

Mr. Tayac and the DUI investigators and experts working with him stand ready to help you or your family member. A member of the office is available to speak with you regarding the case any day of the week between the hours of 8:00 a.m. and 8:00 p.m. Pacific Standard Time at 415-552-6000.

If you hire the Law Office of Robert Tayac, you will know that you have retained the services of the most knowledgeable and experienced DUI defense team.

Why Choose Our Firm?

Attorney Robert Tayac Puts a Long, Decorated Career to Work for You
  • Puts Over 20 Years of Experience Toward Your Case

  • Specialized Education in DUI Defense

  • Has Trained Other Attorneys in San Francisco

  • Former San Francisco Police Officer & Police Inspector

  • Certified by the SFPD on the Intoxilyzer 5000 Testing Device

  • Co-Authored the 4th Edition of California Drunk Driving Defense

  • Boasts a Successful Record Achieving the Best Result for His Clients

  • Takes the Time to Understand You & Your Case

Client Testimonials

  • “Without Mr Tayac's knowledge and drive to succeed, I most likely would not be able to write this review today.”


  • “I am very happy with his professional expertise that he provided during this stressful time.”


  • “Very professional and has a great human element that many lawyers don't have.”

    Former Client

  • “Co-Author of the "first word" in DUI Defense law in this state...”

    D.C., Attorney at Law

  • “My family and I cannot thank you enough...”


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