La. Stat. tit. 22 § 1941
The purpose of this Part is to subject certain insurers to the jurisdiction of the commissioner of this state and to the jurisdiction of the courts of this state in connection with fraudulent or false advertising of insurers not authorized to transact business in this state who circulate false or fraudulent advertising therein. In furtherance of such state interest, the legislature provides in this Part a method of substituted service of process upon such insurers and declares that in so doing, it exercises its power to protect its residents and to define, for the purpose of this statute, what constitutes doing business in this state, and also exercises powers and privileges available to the state by virtue of Public Law 15, 79th Congress of the United States, Chapter 20, 1st Session, S. 340, which declares that the business of insurance and every person engaged therein shall be subject to the laws of the several states, the authority provided in this Part to be in addition to any existing powers of this state.
La. R.S. § 22:1941