Postponement: 1- It is not calculated as part of the regular period of study. 2- The allowance is deferred for the student who postpones his study. 3- Students can postpone for two successive semesters or three separate semesters. 4- Postponement for two successive years is not allowed in the full academic year system. 5- The students are entitled to obtain an honors degree when they graduate. Apology: 1- It is calculated as part of the regular period of study. 2- Only two-month allowance can be disbursed to the students. 3- The students can excuse themselves for not attending three successive semesters. 4- The students cannot excuse themselves for not attending two successive years. 5- The students who excuse themselves are not entitled to obtain an honors degree when they graduate.