70. On being seized of an application contemplated in Division II of Chapter III, the board must cause a notice of the application, easily visible to passers-by, to be posted on the immovable contemplated in the application. Furthermore, the board may cause a public notice of the application to be published, in the manner provided in the rules of procedure.
Every notice contemplated in the first paragraph must indicate that any person may make written representations on the application within ten days of the publication of the public notice or, if there is no public notice, within ten days following the posting up of the notice on the immovable concerned.
The board may, if it considers it expedient, hold a public hearing at which it may hear any person who has made representations.
At such a hearing, a commissioner may limit the duration of the intervention or refuse it if he considers it not pertinent.