Sec. 20. A health care provider who in good faith and in accordance with reasonable medical standards:
(1) participates in the withholding or withdrawal of CPR from a declarant:
(A) by whom an out of hospital DNR declaration and order has been executed under this chapter; or
(B) who has revoked an out of hospital DNR declaration and order when the health care provider has no notice of the revocation; or
(2) provides CPR to a declarant:
(A) when the health care provider has no notice of the out of hospital DNR declaration and order; or
(B) after a revocation of an out of hospital DNR declaration and order;
is not subject to criminal or civil liability and may not be found to have committed an act of unprofessional conduct.