NDAs, or non-disclosure agreements, are legally enforceable contracts that create a confidential relationship between a person who has sensitive information. NDAs can prohibit employees from disclosing certain confidential information that the employees learn or have access to during the course of their employment.Vendors are required to complete disclosures before entering into a City contract. These disclosures are required for all contracts. An NDA is a legal agreement which defines information that the parties wish to protect from dissemination and outlines restrictions on use. An NDA in the workplace is a legal contract that keeps employees from revealing their employer's secrets. Disclosure agreement (NDA) is a contract between at least two parties who agree not to disclose certain confidential information shared between them. Disclosure agreement (NDA) is a legal contract that outlines confidential materials, information and knowledge between two or more parties. A Pennsylvania NonDisclosure Agreement (NDA) establishes a confidential relationship between parties, ensuring that sensitive information remains protected. A Pennsylvania NonDisclosure Agreement is used to establish a confidential relationship between parties and safeguard trade secrets.