A Major Medical plan with prescription drug coverage MUST notify enrollees taking a covered prescription drug:
A. at least 30 days before changing the drug's placement on the Health plan's drug schedule
B. in writing by an officer of the company of any change, deletion, addition, or substitution in the formulary of all updates to the formulary and drug tier arrangements, except for generic substitutions
C. at least 30 days before deleting the drug from the formulary