A. No person shall receive credit in the Teachers' Retirement System of Louisiana for student aid or student employment in a college or university or for other part-time employment of a similar kind or nature. In all cases of doubt, the board of trustees shall determine whether service is creditable within the scope of this Section or within the definitions set forth in R.S. 11:701(22) and (23).
B. Notwithstanding any provision of law to the contrary, any person who is a member of the Teachers' Retirement System of Louisiana who on August 21, 1992, has creditable membership service of at least ten years in this system and who through an administrative error was improperly enrolled in the Teachers' Retirement System of Louisiana as a graduate assistant and who currently has such credit in the Teachers' Retirement System of Louisiana shall be allowed to keep such service credit in the system.