The aim of this paper is to develop a new simple Likert type organizational quality assessment tool based on the European Union Common Assessment Framework to measure organizational quality. The research group consists of 1964 employee in the public organizations. 626 public employees answered the scale developed by the researchers of this study which is called Common Assessment Framework - Organizational Quality Scale (CAF-OQS). To explain the validity of the scale, expert opinions and pilot studies were benefited and then an Exploratory Factor Analysis and Confirmatory Factor Analysis were conducted to construct validity. The sampling was adequate and the scale had a structure with five factors. The explained variance showed that the scale put forth the five factors variable which we call as 'organizational quality' in a high percentage. Factor load values asserted that there was a high relation between items and organizational quality factors. Item-total correlations showed the internal consistency of the scale as high. Cronbach alpha values of the materials revealed the high reliability of the scale. All in all, CAF-OQS is a highly valid and reliable self-assessment tool that can be applied to all employees by public administrators who want to improve the organizational quality and services.