A self-evaluation is a public entity's assessment of its current policies and practices. The self-evaluation identifies and corrects those policies and practices that are inconsistent with title II's requirements. All public entities should have completed a self-evaluation by January 26, 1993. A public entity that employs 50 or more employees must retain its self-evaluation for three years. Other public entities are not required to retain their self-evaluations, but are encouraged to do so because these documents evidence a public entity's good faith efforts to comply with title II's requirements.