83.52. Notwithstanding section 83.50, where a decision is reconsidered by the Société because it was rendered before an essential fact became known or was based on an error pertaining to an essential fact, or because it contains a substantive or procedural defect which is likely to invalidate it, the sum already paid shall not be recoverable unless it was obtained through fraud.
1989, c. 15, s. 1; 1990, c. 19, s. 11; 1991, c. 58, s. 20.