Md. Code, Transportation § 13-406

The Administration shall refuse to register or transfer the registration of any vehicle if:

(1) The application contains any false or fraudulent statement;

(2) The applicant has failed to furnish information or documents required or requested by the Administration;

(3) Any required fee has not been paid;

(4) The applicant is not entitled to registration of the vehicle under the Maryland Vehicle Law;

(5) The vehicle is mechanically unfit or unsafe to be operated on the highways;

(6) The registration of the vehicle is suspended or revoked;

(7) A warrant for a motor vehicle violation under the Maryland Vehicle Law has been issued against the applicant and has not been served on the applicant;

(8) Subject to § 13–406.1 of this subtitle, the applicant is named in an outstanding arrest warrant;

(9) The Administration has reasonable grounds to believe:

(i) That the vehicle is stolen;

(ii) That the grant or transfer of registration would be a fraud against another person; or

(iii) That the vehicle does not comply with Title 2, Subtitle 11 of the Environment Article or any regulations adopted under that subtitle; or

(10) The gross vehicle weight is 55,000 pounds or over and the applicant has failed to furnish proof of payment of the Federal Heavy Vehicle Use Tax.