Maryland Code, Environment § 6-1304

(1) Test whether the children's product is a lead-containing product by using a testing entity qualified or certified under federal law; and

(2) If the children's product tested under item (1) of this subsection is not a lead-containing product, issue a certificate that certifies that the children's product is not a lead-containing product.

(1) Maintain a copy of any documents related to lead testing and any certificate issued in accordance with subsection (a) of this section; and

(2) Provide a copy to the Department or any person on request.

(1) Maintain a copy of any certificate issued in accordance with subsection (a) of this section; and

(2) Provide a copy to the Department or any person on request.

(e)(1) Except as provided in paragraph (2) of this subsection, a person may not sell or offer for sale in the State, by any means, including transactions conducted through a sales outlet, a catalog, or the Internet, a children's product for which there is no certificate issued in accordance with subsection (a) of this section.

(2) Notwithstanding any other provision of this subtitle, a certificate is not required for the sale of a used children's product at a thrift store, consignment store, yard sale, or any other secondhand point of sale.

(1) Based on a test of each children's product or on a testing protocol that is established or recognized by the Department; and

(2) On a form created or approved by the Department.