La. R.S. 11:1786

Each member of Plan A shall contribute an amount equal to a percentage of his monthly earnings from each and every payment of earnings, which contributions shall be credited to annuity savings fund A, and which percentage shall be set by the board for each fiscal year within a range from nine and one-quarter percent to ten percent and shall become effective as of the next payroll period reportable on the employee's W-2 for that year.