Maryland Business Occupations and Professions Section 5-605
§ 5-605.
  (a)   Except as provided in §§ 5-302 and 5-303 of this title and subsection (b) of this section, a person may not practice cosmetology in any place other than:
    (1)   a beauty salon that holds a beauty salon permit; or
    (2)   a barbershop that holds a barbershop permit issued under Title 4 of this article.
  (b)   (1)   A licensed cosmetologist may practice cosmetology in the residence of an individual confined to the residence by reason of a physical or mental infirmity, in an assisted living facility as defined in § 19-1801 of the Health - General Article, in a hospice facility defined in § 19-901(c) of the Health - General Article, in a nursing home as defined in § 19-1401(e) of the Health - General Article, or in a hospital as defined in § 19-301 of the Health - General Article or a similar institution, by appointment, if:
      (i)   the licensed cosmetologist is sponsored by a beauty salon that holds a beauty salon permit; and
      (ii)   the patron is a customer of the beauty salon.
    (2)   An individual who holds a limited license to provide nail technician services may provide nail technician services in a barbershop.