Maryland Code, Labor and Employment § 3-502

(a)(1) Each employer:

(2) An employer may pay an administrative, executive, or professional employee less frequently than required under paragraph (1)(ii) of this subsection.

(1) in United States currency; or

(2) by a check that, on demand, is convertible at face value into United States currency.

(d)(1) In this subsection, “employer” includes a governmental unit.

(2) An employer may not print or cause to be printed an employee's Social Security number on the employee's wage payment check, an attachment to an employee's wage payment check, a notice of direct deposit of an employee's wage, or a notice of credit of an employee's wage to a debit card or card account.

(1) direct deposit of the wage of an employee into a personal bank account of the employee in accordance with an authorization of the employee; or

(2) credit of the wage of an employee to a debit card or card account from which the employee is able to access the funds through withdrawal, purchase, or transfer if: