Common use of Possible Acceleration upon Change in Control or Certain Terminations Following Change in Control Clause in Contracts

Possible Acceleration upon Change in Control or Certain Terminations Following Change in Control. If there is a Change in Control of Waste Management, Inc., all outstanding but unvested Restricted Stock Units that are not vested will become immediately vested in full, unless the successor entity assumes all awards granted under the Plan and converts the awards to equivalent grants in the successor effective as of the Change in Control. Provided, however, even if the successor entity so assumes and converts all awards granted under the Plan, if the successor entity terminates Employee’s employment during the Window Period without Cause (as each term is defined in Section 16 below), or due to Employee’s death or disability, then all outstanding but unvested Restricted Stock Units (or its equivalent grant in the successor entity) will become immediately vested in full as of such termination.