A Practice Note discussing limits on divestiture obligations necessary to obtain antitrust approval of a merger or acquisition. This Practice Note discusses the types of divestiture limitations merging parties negotiate, such as specified divestitures, divestiture caps, or that the buyer will divest only non-material assets, those that would not cause a material adverse effect (MAE), or those that would not cause a burdensome effect. This Practice Note includes links to What's Market summaries of antitrust risk-shifting provisions in certain public and private agreements, and will be updated annually.