37. The Régie, on its own initiative or on application, may revise or revoke any decision it has made
(1) where a new fact is discovered which, had it been known in time, could have justified a different decision;
(2) where an interested person was unable, for sufficient cause, to present observations; or
(3) where a substantive or procedural defect is likely to invalidate the decision.
Before revising or revoking a decision, the Régie must give the persons concerned an opportunity to present observations.
In the case set out in subparagraph 3 of the first paragraph, the decision may not be revised or revoked by the commissioners having made the decision.