Louisiana Revised Statutes Tit. 9, § 4753. Written notice

A. The privilege created by R.S. 9:4752 shall become effective if, prior to the payment of insurance proceeds, or to the payment of any judgment, settlement, or compromise on account of injuries, a written notice containing the name and address of the injured person and the name and location of the interested health care provider, hospital, or ambulance service is delivered by certified mail, return receipt requested, or by facsimile transmission with proof of receipt of transmission by the interested health care provider, hospital, or ambulance services, or the attorney or agent for the interested health care provider, hospital, or ambulance service, to the injured person, to his attorney, to the person alleged to be liable to the injured person on account of the injuries sustained, to any insurance carrier which has insured such person against liability, and to any insurance company obligated by contract to pay indemnity or compensation to the injured person. This privilege shall be effective against all persons given notice according to the provisions of this Section and shall not be defeated nor rendered ineffective as against any person that has been given the required notice because of failure to give the notice to all those persons named in this Subsection.

B. If delivery of the notice required by this Section is made by facsimile transmission, and the sender fails to obtain a signed proof or receipt within seven days, then delivery shall be made by certified mail, return receipt requested, and costs of mailing shall be taxed as court costs.