In this section, “nursing home” means a related institution that is classified as a nursing home. A nursing home may not assess an interest penalty on charges for services provided to a resident until, whichever is later in time: 45 days after the nursing home mails an itemized statement of the charges to the person responsible for payment of the charges; or 30 days after the end of the period for which the itemized statement of the charges covers. The nursing home shall include on the itemized statement of charges a statement in bold and conspicuous print as to when interest may be assessed consistent with the provisions of subsection (b) of this section.