This Standard Document contains provisions to incorporate an assumption of the delegated obligations and an optional novation into the assignment agreement. Assigned Contract. Novation.The parties hereto agree to simultaneously enter into the novation agreement (the. Unlike notation, assignment contracts do not annul the initial agreement and do not establish a new agreement. A novation is a threeparty agreement between the United States, the original contractor, and the new contractor offering to assume the government contract. An assignment and assumption agreement assigns contractual rights or intangible personal property (such as intellectual property or goodwill) from one party. Generally, an assignment and a novation require the approval of all three parties involved. Lease agreement is usually an assignment, not a novation. , a Texas corporation.