Maryland Code, Tax-General § 13-205

(i) on written request of the administrator of the Central Collection Unit for taxpayer identity information, to the administrator or other employer or agent of the Unit but only for purposes of collection of a debt that the taxpayer owes to the State;

(ii) to 1 or more commercial printers for the purpose of printing the taxpayer identity information on tax forms;

(iii) to 1 or more commercial entities for the purpose of using a lockbox or similar system for tax forms and payments;

(iv) in lists of names of persons who have failed to pay the tax as required in this article and other relevant information that the Comptroller determines may help in the collection of unpaid tax; and

(v) except for the identifying numbers described in subsection (a)(3) of this section, to:

(i) shall use that information only to obtain telephone numbers for the Comptroller; and

(ii) may not use any telephone number or taxpayer identity information or disclose the information to any other person.