Declaring a Major or Minor Note: During priority registration advising appointments are scheduled for current majors only. Students wishing to declare the major should contact the advisor before or after priority registration. The Chemistry and Biochemistry department will make course recommendations via email for those who want to enroll for the right classes in anticipation of declaring the BIOC major or minor. Please note that some programs do have double dipping policies that make a minor in Chemistry or Biochemistry difficult. Please check with your major advisor regarding their double dipping policies.