Under the Texas Payday Law, severance pay is not owed unless it is promised in a written policy. Severance pay that is promised in a written policy or other form of agreement is an enforceable part of the wage agreement under the Texas Payday Law.An ERISA plan can be held to exist in the absence of a written plan document or compliance with other ERISA requirements. Did you know that under Texas law, if you've been terminated or laid off, you may be asked to sign a severance agreement? This GRIST provides a basic primer on ERISA's preemption of state laws, including various exceptions, exclusions and court rulings. ERISA governs only a severance plan that requires an "ongoing administrative program," requiring "complex administrative activities." If you work for a company in the private sector, ERISA likely covers your retirement plan benefits. By Dan Atkerson on March 26, 2020. Although the ERISA statute applies to some benefit plans, it does not apply to others. This Plan is an "employee benefit plan," as defined in Section 3(3) of ERISA.