A sample testimony declaration for submission by an opposer or petitioner in an opposition or cancellation proceeding before the Trademark Trial and Appeal Board (TTAB). This sample declaration addresses facts that support likelihood of confusion and dilution claims in TTAB proceedings, including the history, duration, and extent of use of the plaintiff's trademark, the unsolicited publicity and awards received by the plaintiff's brand, the plaintiff's enforcement of its mark, actual confusion, the parties' communications, and the markets for the goods and services identified in the parties' applications and registrations. This Standard Document has integrated drafting notes with important explanations and drafting tips.