Not sure, but 3-4 people have to sign off on the permit, see below.
To validate the signatures of this document you must enter the following url https://validador.sea.gob.cl/validar/2142295071 The project complies with the applicable environmental regulations identified in section 11 of this document; and, taking charge of the effects, characteristics or circumstances established in article 11 of the Law, proposes appropriate mitigation, compensation or reparation measures, [if applicable] considering the conditions and requirements established in point 13.2 of the ICE . The holder has corrected the errors, omissions and inaccuracies raised in the Consolidated Clarification Report (s), Rectifications and extensions. The Environmental Management Service Executive Directorate recommends that this ICE be fully approved.