TourAxiom/US Federal/Statutes/Title 42/§ 1395w–102/(b)/(2)/(E)/(v)/(II)Timing of electionOfficial sourceciteAn enrollee in a prescription drug plan or an MA–PD plan may make such an election—(aa)#prior to the beginning of the plan year; or(bb)#in any month during the plan year.← Clarification regarding past due amountsFailure to pay amount billed →