To file a certificate of termination using SOSDirect: 1. Logon and select the Business Organizations Tab. 2.Learn More About the Sufficiency of Written Notice Requirements for Termination Under Texas Contracts. How do I terminate my Texas entity? Customer: I have an employee who put in a two weeks notice(Texas). We accepted the resignation and made it effective immediately due to many factors. Understand termination letter and separation notice requirements for each applicable U.S. state with this helpful guide to stay compliant. The Contract Termination Notices chart in the HR Library (member login required) provides a detailed list of sample notices to employees. Notice should be in writing. In Texas we are under no obligation to accept the two week notice and it is still considered a resignation because they demonstrated intent to leave.