(a) General rule. -- An emergency medical services provider shall, in the course of providing care to a principal, at all times comply with the instructions of an authorized medical command physician to withhold or discontinue cardiopulmonary resuscitation for a principal whose living will has become operative under section 5443(a) (relating to when living will operative).

(b) Applicability. -- This section is applicable only in those instances where an out-of-hospital DNR order is not in effect under section 5484 (relating to orders, bracelets and necklaces).