How Old Do You Have to Be to Drive a Boat in Montana?

Minimum Age to Operate a Boat in Montana

General Boating Age Requirements

Montana’s operator-age rules focus on motor size and whether a supervising adult is on board:

• Age 12 and under: Children 12 years old or younger may not operate a motorboat or PWC with a motor rated at more than 10 horsepower unless they are accompanied on board by someone 18 years of age or older.
• Ages 13–14: Youths 13 and 14 years old may operate a motorboat or PWC over 10 horsepower only if:
  • They possess a valid Montana motorboat operator’s safety certificate, or
  • They show evidence of completing an approved boating safety course, or
  • They are accompanied on board by someone 18 years of age or older.
• Age 15 and older: Operators 15 and older may operate a motorboat or PWC over 10 horsepower without these age-specific restrictions, as long as they comply with all other Montana boating laws (equipment, navigation, alcohol, etc.).

These rules apply to motorboats and PWCs powered over 10 horsepower. Non-motorized craft (kayaks, canoes, paddleboards, sail-only craft under certain conditions) are not subject to the same age limits, though safe supervision for young boaters is still strongly recommended.

Supervision and Adult-Onboard Requirements

For younger boaters, adult supervision is central to Montana’s boating rules:

• Children 12 and under: Must be accompanied on board by someone 18 or older if operating a motorboat or PWC over 10 horsepower. The adult must be on the vessel and able to take immediate control—not supervising from shore or another boat.
• Youths 13–14: Must either have a valid Montana motorboat operator’s safety certificate / approved course completion or be accompanied by someone 18 or older when operating a motorboat or PWC over 10 horsepower.
• Definition of “adult” for supervision: Montana uses age 18 as the benchmark for a supervising adult in its operator age limit rules.
• Responsibility of owners and parents: Boat owners and parents/guardians should not allow children to operate vessels in violation of these age and supervision requirements and may be held responsible if they do.

Boating License or Education Requirements

Does Montana Require a Boating Safety Course?

Montana does not have a universal “boating license” requirement for all operators, but it does have mandatory boater education for youths 13 and 14 who want to operate a motorboat or PWC over 10 horsepower without an adult on board.

• Who must complete a course: Youths 13–14 years old who wish to operate a motorboat or PWC over 10 horsepower without an adult 18+ on board must:
  • Possess a valid Montana motorboat operator’s safety certificate, or
  • Show evidence of completing another state’s or organization’s NASBLA-approved boating safety course.
• Optional but recommended for others: Boaters 15 and older are not required by state law to hold a motorboat operator’s certificate, but completing an approved boating safety course is strongly recommended for better knowledge of rules, navigation, and emergency procedures.
• Where to find courses: Montana Fish, Wildlife & Parks (FWP) lists approved in-person, home-study, and online boating safety courses on its boating education page.

Age Exceptions and Grandfather Clauses

Unlike some states, Montana does not base its boat education requirement on a birthdate cut-off (such as “born after a certain year”). Instead, the rule is targetted at a specific age range:

• Youths 13–14: Must either have boater education or be accompanied by someone 18 or older to operate a motorboat or PWC over 10 horsepower.
• Under 13: Even with a safety certificate, children 12 and younger still need an adult 18 or older on board to operate a powered vessel over 10 horsepower.
• 15 and older: Operators 15+ are not required by Montana statute to hold a motorboat certificate, but they must follow all other boating laws.
• Rental policies: Rental businesses may set stricter age or education requirements than state law. For example, many liveries require renters to be at least 18 and may require proof of boating knowledge as a condition of renting.

How Old Do You Have to Be to Drive a Jet Ski (PWC) in Montana?

Minimum Age to Operate a PWC

In Montana, personal watercraft (PWCs) such as Jet Skis, WaveRunners, and Sea-Doos are treated similarly to other motorboats when it comes to age and education:

• Age 12 and under: May not operate a PWC powered by a motor over 10 horsepower unless accompanied on board by someone 18 or older.
• Ages 13–14: May operate a PWC over 10 horsepower only if they:
  • Hold a valid Montana motorboat operator’s safety certificate, or
  • Show evidence of completing an approved boating safety course, or
  • Are accompanied by someone 18 years of age or older.
• Age 15 and older: May operate a PWC without age-specific restrictions, provided they follow all other boating laws.
• Rentals: A PWC may not be rented to anyone under 18 years of age, even if the operator-age rules would otherwise allow younger operation with supervision and education.

Although Montana’s laws don’t add unique horsepower thresholds specifically for PWCs beyond the “over 10 horsepower” standard, most PWCs easily exceed that limit, so the operator age and education rules described above almost always apply.

Penalties for Violating Age Laws

Violating Montana’s boating laws—including operator age and supervision requirements—can lead to enforcement action. In general:

• Boating law violations: A person convicted of violating Montana’s boating laws may be fined up to $500 and may be sentenced to up to six months in jail, depending on the specific offense and circumstances.
• Responsibility of adults: Adults, including boat owners and parents/guardians, who knowingly allow underage or improperly supervised operators may face citations if their actions contribute to a violation.
• More serious offenses: Operating under the influence, negligent operation, or violations that lead to injuries or property damage can result in additional charges and higher penalties.

Because penalties can be significant and laws may be updated, boaters should check the latest regulations from Montana Fish, Wildlife & Parks before heading out.

How to Get Certified to Drive a Boat in Montana

Steps to Getting Your Boating License

If you are 13 or 14 years old and want to operate a motorboat or PWC powered by more than 10 horsepower without an adult on board, you must complete a Montana-approved boating safety course and obtain a motorboat operator’s safety certificate. Here’s how the process generally works:

• Step 1: Enroll in an approved boating safety course.
  • Montana FWP offers several options, including home-study materials and online boating safety courses approved by the state.
  • The course covers navigation rules, required equipment, safe operation, and Montana-specific boating regulations.
• Step 2: Study the materials and complete the course.
  • Work through the lessons, quizzes, and any required practice tests until you are ready for the final exam.
• Step 3: Pass the final exam.
  • Successfully passing the exam demonstrates that you understand the key safety concepts, state laws, and navigation rules taught in the course.
• Step 4: Receive your Montana motorboat operator’s certificate.
  • After completing the course and exam, you will be issued a motorboat operator’s safety certificate that serves as proof of meeting Montana’s education requirement.
• Step 5: Carry proof while operating.
  • When required by law, keep your certificate or course completion card on board and be prepared to show it to law enforcement officers on request.

Boaters older than 14 are not required to obtain a certificate but are encouraged to complete a course to improve safety and confidence on the water.

Boating Safety Tips for Young Operators

• Always wear a life jacket.
  Montana law requires children under 12 to wear a U.S. Coast Guard–approved life jacket on boats less than 26 feet in length that are in motion, and it’s a smart practice for everyone, regardless of age.
• Never operate without required adult supervision.
  If you are 12 or younger, or 13–14 without a certificate, you must have an adult 18 or older on board to operate a motorboat or PWC over 10 horsepower.
• Learn navigation rules and right-of-way basics.
  Understanding who has the right-of-way, how to pass or overtake safely, and how to navigate no-wake zones is essential for preventing collisions and conflicts.
• Operate at a safe speed.
  Slow down near docks, swimmers, anchored boats, and in congested areas. Remember that boat operators can be held responsible for damage caused by their wake.
• Avoid alcohol and drugs.
  Operating a boat under the influence is illegal and greatly increases the risk of accidents. Young operators should never consume alcohol or drugs, especially when around water and boats.
• Take your boating safety course early.
  Completing a course before the busy boating season gives young operators time to learn the rules and practice safe operation under adult supervision.

Summary

In Montana, the answer to “How old do you have to be to drive a boat?” depends on your age, the vessel’s horsepower, and whether you have completed a boating safety course. Children 12 and under may not operate a motorboat or PWC over 10 horsepower unless accompanied by someone 18 or older. Youths 13–14 may operate these vessels alone only if they have a valid Montana motorboat operator’s safety certificate or have finished an approved boating safety course; otherwise, they must still be accompanied by an adult 18 or older. Boaters 15 and older can generally operate without age-based restrictions but must follow all Montana boating laws.

By combining the correct minimum age, required supervision, and appropriate boating education, Montana boaters—especially young operators—can enjoy the state’s rivers and lakes more safely and confidently. Completing an official boating safety course through an approved provider like Recademics is one of the best ways to learn the rules, meet state requirements, and prepare for a safe day on the water.