Maryland Code, PUBLIC SAFETY 12-836
(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.