An Illinois-specific agreement between an employer and an employee concerning confidentiality and appropriate handling of the employer's commercially valuable information, compliance with relevant security rules and policies, and protection of the employer's intellectual property assets. Agreements of this type have various titles, which may use the term "nondisclosure" in place of "confidentiality," or "intellectual property" in place of "proprietary rights." It is intended for use by private employers. This Standard Document is designed to comply with Illinois law and the law in key local jurisdictions. Other local laws may impose additional or different requirements. For information on the scope of local law coverage, see Local Law Coverage in Labor & Employment Resources. This Standard Document has integrated notes with important explanations and drafting tips.