The moneys appropriated by R.S. 11:901.18 shall further be used to provide a supplement to the retirement allowance of any teacher who is now, or will be retired with a retirement allowance by the board of trustees of the teachers' retirement system of Louisiana under the provisions of Parts III and VII of this Chapter, or by the board of trustees of the teachers' retirement fund of Orleans Parish under the conditions and the methods of computing the amount of the supplement provided for in R.S. 11:901.21 through 901.23.
La. Consolidated Public Retirement § 11:901.20