The draft article for the new law for Mexican collecting permits sounds very reasonable. I would even suggest adding a statement of encouragement to deposit holotypes, perhaps with a list of institutions and curators to contact (maybe as an addendum to the permit). More primary types being deposited in Mexican museums would also "force" those institutions to provide good maintenance and efficient service to the scientific community (e.g., with loans, etc.), it would also give them more importance or justification to exist and grow.

(PS: I am not a foreign taxonomist but I am in the Nearctic, temporarily).