Md. Code Ann., Gen. Provis. § 4-308
(a) Subject to subsection (b) of this section, a custodian shall prohibit inspection, use, or disclosure of a circulation record of a public library or any other item, collection, or grouping of information about an individual that:
(b) A custodian shall allow inspection, use, or disclosure of a circulation record of a public library only:
Added by Acts 2014, c. 94, § 2, eff. Oct. 1, 2014.