Md. Code, Labor and Employment § 6–108

(a) The owner or operator of a high voltage line shall perform any act that is reasonably necessary to carry out the safety measures required by § 6-107 of this title to guard effectively against accidental contact with the high voltage line:

(1) after notification from a person who intends to perform an activity listed under § 6-106 of this subtitle within 10 feet of a high voltage line;

(2) after the person who intends to perform the activity has made any appropriate arrangements; and

(3) within a reasonable time.

(b) This section does not require an owner or operator of a high voltage line to:

(1) bear the expense of any safety measure required by this title; or

(2) de-energize or ground any high voltage line if doing so would:

(i) substantially interfere with service to the public; or

(ii) endanger the health, safety, or welfare of the public.