Miss. Code § 39-3-21
Except as otherwise provided for in this section, every public library or public library system established or maintained under this article shall be free for the use of the residents of the territory included within the library service area, subject to such reasonable rules and regulations as the administrative board of trustees finds necessary. Reasonable reimbursements may be collected for special library services, provided these are determined in advance and in writing by the administrative board of trustees.
The board of trustees of any public library may allow the payment of various fees and other accounts receivable to the public library, by credit cards, charge cards, debit cards and other forms of electronic payment, in accordance with policies established by the State Auditor. Except as otherwise provided in this section, any fees or charges associated with the use of such electronic payments shall be assessed to the user of the electronic payment as an additional charge for processing the electronic payment, so that the user will pay the full cost of using the electronic payment.
Miss. Code § 39-3-21