Tour FAQs

Where is PPPL located?
The Princeton Plasma Physics Lab is located at 100 Stellarator Road, Princeton, N.J. 08540.

Where can I get directions?
Click here for directions to the Laboratory.

When are tours held?
Public tours are held the fourth Friday of most months at 11 a.m. 

We also offer a limited number of school and group tours. Please email [email protected] for more information. 

The Lab is closed on holidays and for winter break between Christmas and New Year's Day. The Lab is also closed on Memorial Day, Juneteenth (June 19), the Fourth of July, Labor Day, Thanksgiving, and the day after Thanksgiving.The Lab is closed on holidays and for winter break between Christmas and New Year's Day. 

How much do tours cost?
All tours of PPPL are free.

How do I register for or request a tour? 

How do I register on the open public tour calendar?

How do I request a group tour? 

How do I schedule a tour for my class?

Whom can I contact for additional information?

Contact [email protected]

What other information is required?
Adults joining the public tour must provide the following information: name, email, citizenship, city, state and country of birth, and address/organization. Adults organizing group or school tours with children must provide the children's name, organization, and grade.

Adult non-U.S. citizens, must  fill out the following Foreign National Access Program Registration Form  on the same day you register. We must receive this form nine days before your scheduled visit.

What is the deadline for providing visitor information? 

You must provide visitor information at least nine days in advance to comply with our site protection clearance process. 

What identification do adults need to show at the PPPL security booth?
Adults should be prepared to show a photo ID – such as a license for adult citizens and a school ID for minors. Non-citizens should bring their passports.

Who can attend the tours?
Our tours are open to all adults and children age 10 and up.

Is PPPL wheelchair accessible?
Most of the facility is wheelchair accessible and there is a wheelchair on site available for tours. Please let us know on your registration form if your or someone in your group will need to use it so we can make it available for you.

Are photos allowed?
Yes. You are welcome to take photos during your tour. If you are using social media, please tag your photos with "@PPPLab".

What other security rules does PPPL have?
Please abide by the following regulations for your own health and safety and the Laboratory’s security:

  • Stay with your group and do not wander outside or inside the building by yourself.
  • No backpacks, briefcases or packages in the test cell.
No food or drinks in the test cell.
  • No high-heeled shoes, open-toed shoes, or sandals.

Where can I park?
Members of tour groups can park in our visitor’s parking lot. After leaving the security booth, drive straight ahead to the parking lot on the right, just past the main building on the left.

Can I eat in the cafeteria?
Please feel free to eat or get a cup of coffee at our cafeteria, which is open weekdays from 7 a.m. to 1 p.m. We ask that you note that you will be staying for lunch on your registration form and call our cafeteria manager Jerry Vazquez at 609-243-3350 if you have a large group joining us for lunch so we can make special arrangements.

Where is the auditorium?
The Melvin B. Gottlieb auditorium is directly to your left as you enter our main building.

Where are the restrooms?
Restrooms are available directly to your right as you enter the main building.

Where can I purchase PPPL souvenirs?
You may be able to purchase souvenirs at our Princeton Plasma Hutch in our lobby. The Laboratory’s Plasma Hutch store has PPPL T-shirts, hats, sweatshirts, vests, mugs and other PPPL goodies available for sale. Please let us know in advance if you plan to visit.