Mississippi Code Title 41. Public Health § 41-41-219

(1) Except as otherwise provided in Title 41, Chapter 141, Mississippi Code of 1972, a health care provider or institution acting in good faith and in accordance with generally accepted health care standards applicable to the health care provider or institution is not subject to civil or criminal liability or to discipline for unprofessional conduct for:

(2) An individual acting as agent or surrogate under Sections 41-41-201 through 41-41-229 is not subject to civil or criminal liability or to discipline for unprofessional conduct for health care decisions made in good faith.