Maryland Public Safety Section 12-836
§ 12-836.
  (a)   An elevator contractor may not engage in the business of elevator installation, alteration, repair, or service work unless the work of the elevator contractor is covered by:
    (1)   general liability insurance in the amount of at least $1,000,000; and
    (2)   property damage insurance in the amount of at least $500,000.
  (b)   An applicant for an elevator contractor license shall submit proof of the insurance required under subsection (a) of this section to the Board with the license application.
  (c)   Unless a licensee meets the insurance requirements of this section, the Board may not renew the license of a licensee to whom the insurance requirements of this section apply.
  (d)   A licensed elevator contractor shall give the Board notice of the cancellation of insurance at least 10 days before the effective date of the cancellation.