User Information

Welcome to Jefferson Lab

If you are a visitor at Jefferson Lab, this is the right place for you.  You will find a lot of information here regarding Radiation Worker-I training, who to contact, etc. on this page.

If it is determined that you will need RW-I qualifications (you're Sponsor will decide), you will need to:

  • Prepare for the RW-I exam by watching the online training modules or read the printed paper study guide.  Search for SRL skill code SAF801C using this link: or contact us to receive a printed version.
  • Read and sign the General Access RWP before entry to the Accelerator Site. Use the link below and search for SRL skill code SAF801kd using this link:
  • Take the proctored RW-I exam onsite (cannot be accessed offsite) at any one of these locations during regular business hours:
    • Building 12
    • Building 28
    • Building 52
  • Request an appointment to perform the RW-I Practical Factors exercise by contacting or call 757-269-7463.
  • Request a dosimeter.  Please use this link (On-line Dosimeter Request Form ) to make this request.  If you are having trouble accessing this link, please contact Becky Mosbrucker at 757-269-7236.

Other User information you may need can be accessed here.