Explore our guide on SLAs for IT support. Learn about SLA types, importance, roles, responsibilities, and practical examples to enhance service delivery.An SLA is a contract that describes expectations for service quality. Download Illinois Service Level Agreement template, modify and send for signing using BoloForms Signature. This document is intended to provide details of the provision of IT consultative and support services to REX Energy. A preventative maintenance agreement is a service contract designed to help businesses maintain their equipment and avoid costly repairs. CONTRACT TYPE: Maintenance Agreement. Should Contractor fail to perform or complete any required work prior to the expiration of the. In an emergency, call the Service Office 217-333-0340. Used when amendments to an SLA occur.