Which of the following statements is NOT true?

Before an individual can conduct activities involving radioactive
      materials, s/he must apply for a Radioactive Material Users
      Permit.
Only UNH faculty and staff may become Radioactive Material User
      Permit Holders.
Permit Holders must register all individuals who use or directly
      supervise use of radioactive material in their laboratories/work
      areas.
All trained individuals must attend annual refresher radiation safety
      training provided by OEHS.
All of the above are true.