The effort was backed by legislation that required every person and every municipality to destroy and prevent the establishment of designated pests.

This kind of concession was in fact formally forbidden by the new act, in order to prevent the establishment of monopolies in mining industry.

Alien species smother other vegetation, compete for resources, pose a fire hazard, and prevent the establishment of other species' seedlings.

The community has deed restrictions which require minimum set-backs from the street and prevent the establishment of businesses within the neighborhood's boundary.

The city tried in the past to prevent the establishment of service providers by designating some locations as industrial areas.