The purpose of this guide is to provide instructions to Agencies (IA) on project control and contract. This article will help you construct your event contract agreement efficiently.THIS CONTRACT FOR SERVICES, including any attached addenda, if applicable (Contract) is effective as of July 1,. The two sample contracts included will serve as the most advantageous starting point for all parties involved in contract negotiations. Contracts should only contain obligations: what you're obligated to do for your client and what are they obligated to do for you.