This study aimed to identify the range of the availability and practice of authentic assessment competencies for intermediate stage teachers in Sharurah governorate, and to know the effect of these variables (gender, major, experience) on the range of the availability and practice of authentic assessment competencies. A questionnaire was designed which consisted of (44) items measuring five domains of the availability and practice of authentic assessment strategies competencies. It was applied on a sample which consisted of (67) teachers. Results of the study showed that the range of the availability and practice of authentic assessment competencies were highly degree; there were no statistically significant differences found in the range of the availability and practice of authentic assessment competencies due to the influence of some variables: (gender, major); and differences were found due to the experience variable. Also the results show a high correlation between availability and the practice for authentic assessment competencies, and there is a statistically significant effect between the degree of availability of authentic assessment competencies and the degree of practice of authentic assessment competencies, and we reached a multiple regression equation. The study included many recommendations. The most important one was the necessity of providing training programs for teachers in the field of modern assessment strategies in order to improve the ability of teachers in this field.