Md. Code, Health Occupations § 14–322

Notwithstanding any other law, the Board may not require as a qualification to obtain a license or as a condition to renew a license:

(1) Certification by a nationally recognized accrediting organization that specializes in a specific area of medicine; or

(2) Maintenance of certification by a nationally recognized accrediting organization that specializes in a specific area of medicine that includes continuous reexamination to measure core competencies in the practice of medicine as a requirement for maintaining certification.