Creates the Uniform Public Expression Protection Act. Applies the Act to a civil cause of action, including an action in federal court under its supplemental or diversity jurisdiction, against a person based on the person's: (i) communication in a legislative, executive, judicial, administrative, or other governmental proceeding; (ii) communication on an issue under consideration or review in any of these proceedings; or (iii) exercise of a right guaranteed by the United States Constitution or the Illinois Constitution on a matter of public concern. Provides that the Act does not apply to a cause of action asserted: (i) against a governmental unit or an employee or agent of a governmental unit acting or purporting to act in an official capacity; (ii) by a governmental unit or an employee or agent of a governmental unit acting in an official capacity to enforce a law to protect against an imminent threat to public health or safety; or (iii) against a person primarily engaged in the business of selling or leasing goods or services if the cause of action arises out of a communication related to the person's sale or lease of the goods or services. Creates a procedure for a special motion for expedited relief for a party being sued for issues covered by the Act to dismiss or strike the action in whole or in part within 60 days of being sued. Requires the court to rule on a special motion for expedited relief within 60 days after a hearing, and the court must conduct a hearing not later than 60 days after the filing of such a motion unless it continues it for discovery under the Act or for other good cause. Makes other changes. Makes a conforming change in the Citizen Participation Act. Effective immediately.