If you’re starting a job in Washington’s hospitality industry—whether at a restaurant, bar, or event—knowing the difference between a Class 12 and Class 13 MAST permit isn’t just helpful, it’s the law.
In Washington State, all alcohol servers must hold either a Class 12 or Class 13 MAST permit, depending on age and job duties.
This guide will walk you through what each permit means, who needs one, and how to get certified easily with ServeSmart.
Key Takeaways
- MAST permits are required by Washington law for anyone serving, mixing, or supervising alcohol service.
- Class 13 MAST Permit is for ages 18–20. It allows you to serve alcohol but not mix drinks or work without supervision.
- Class 12 MAST Permit is for ages 21+. It grants full bartending and supervisory rights in any licensed venue.
- Training and testing are the same for both permits, and certification is valid for 5 years.
- ServeSmart offers an easy, state-approved online course that lets you complete your training on your schedule.
- Class 13 permit holders can upgrade to Class 12 when they turn 21 without retaking the course.
What Is a MAST Permit?
MAST stands for Mandatory Alcohol Server Training. It’s a legal requirement in Washington State for anyone who:
- Serves or delivers alcohol
- Mixes or pours drinks
- Sells alcohol directly to customers
- Supervises alcohol service
You’ll need a permit if you work in places like:
- Restaurants, bars, and cafes
- Catered events and banquets
- Grocery store tastings
- Growler fill stations
- Breweries or wine bars with service areas
Working without a valid MAST permit after your first 60 days on the job can result in fines, job loss, or even misdemeanor charges for both you and your employer.
Class 12 vs. Class 13 MAST Permit in Washington State
Washington offers two types of MAST permits: Class 13 and Class 12. They both require the same training, but they differ in what you’re allowed to do based on your age.
Class 13 MAST Permit ("Server Permit")
If you’re between 18 and 20 years old, you’ll get a Class 13 permit. This allows you to:
- Take alcohol orders
- Deliver beer, wine, or spirits to tables
- Open and pour beer or wine in areas open to minors
You cannot mix cocktails, pour liquor, or supervise other servers. You also can’t work behind a bar if it’s a 21+ area.
Where can you work?
Restaurants, cafes, catered events, and banquet halls—as long as a supervisor with a Class 12 permit is present.
Training and exam:
Same as Class 12. You’ll take a state-approved course online or in person, followed by a final exam.
Permit length:
Valid for 5 years.
Upgrading later:
Once you turn 21, you can upgrade to a Class 12 permit without retaking the course.
Why it matters:
Serving without the right permit could lead to fines or violations for you and your employer.
Class 12 MAST Permit ("Mixologist Permit")
If you’re 21 or older, you qualify for a Class 12 permit, which gives you full authority to:
- Pour and mix drinks, including spirits
- Work behind the bar
- Manage or supervise other alcohol servers
- Work in 21+ venues like bars and nightclubs
Where can you work?
Anywhere that serves alcohol—bars, nightclubs, lounges, breweries, restaurants, or private events.
Training and exam:
Same training as Class 13. You’ll complete an approved course and pass a final exam.
Permit length:
Valid for 5 years.
Compliance note:
You’re required to carry your MAST permit during your shifts. Employers must verify permits for all staff.
Class 12 vs. Class 13 MAST Permit – Comparison Chart
| Feature | Class 12 MAST Permit | Class 13 MAST Permit |
|---|---|---|
|
Minimum Age |
21+ |
18–20 |
|
Permitted Duties |
Full alcohol service, including mixing drinks and supervision |
Serve only—no mixing or spirits |
|
Eligible Workplaces |
Bars, lounges, restaurants |
Restaurants, events, or cafes |
|
Can Mix Spirits? |
Yes |
No |
|
Can Supervise? |
Yes |
No |
|
Supervision Required? |
No |
Yes (Class 12 must be present) |
|
Upgrade Eligible? |
Not applicable |
Yes, after turning 21 |
|
Permit Duration |
5 years |
5 years |
|
Legal Responsibility |
Must carry permit; employers must verify |
Must carry permit; employers must verify |
How to Get Your MAST 13 or MAST 12 Permit Online: Step-by-Step
Getting certified is fast, easy, and affordable with ServeSmart, a Washington State-approved training provider.
Step 1: Enrol at iservesmart.com
Visit iservesmart.com and sign up for our official MAST training course. Choose Class 12 or Class 13 based on your age.
Step 2: Complete the Online Course
Take the training at your own pace. You’ll learn how to:
- Check IDs and spot fakes
- Prevent over-service
- Handle difficult situations
- Understand Washington alcohol laws
Expect about 3 hours of learning, broken into easy modules.
Step 3: Pass the Final Exam
After the course, take a short multiple-choice exam. You’ll need 80% or higher to pass.
Step 4: Receive Your Permit by Mail
After passing, ServeSmart will mail your official permit card to your address. This can take up to 30 days, but it usually arrives faster.
Bonus Tip:
If you start with a Class 13 permit, you can easily upgrade to Class 12 with ServeSmart once you turn 21—no need to retake the course.
Reminder:
Permits are valid for 5 years. After that, you’ll need to retake the MAST course and exam to stay compliant.
Conclusion
Here’s the quick breakdown:
- Class 13 = 18–20 years old, limited to serving (no mixing)
- Class 12 = 21+, full bartending and supervisory rights
Both permits are required by law if you’re working in alcohol service. Getting the right one protects you and your employer, and opens up more job opportunities.
ServeSmart makes the whole process simple, fast, and affordable. Get certified from your phone or laptop, and go into your next shift with confidence.
Start your MAST permit training with ServeSmart today and get certified the easy way.
FAQ
No. The MAST permit is only valid in Washington. If you move to another state, you’ll need to complete their specific alcohol server training program (for example, RBS training in California).
Just pay close attention during the training. The exam is based on the course content, and ServeSmart’s lessons are designed to make everything clear and easy to remember.
Nope. Your permit stays valid for 5 years, no matter where you work in Washington. Just give your new employer a copy.
It depends. If the event is licensed and serves alcohol to the public, volunteers often need a MAST permit. When in doubt, it’s best to get certified and benefit from it further in the future.
