I.    Incoming First Year

            After the second grading period of each school year, a Division Memorandum is released to the elementary schools within Quezon City, requesting the principals to recommend and certify pupils belonging to the upper twenty percent (20%) of the graduating class and have a grade of at least 85% in Science, Mathematics, and English and 83% in all other subjects. Parent's consent is required of these pupils before they are considered candidates for the entrance examination given at the Quezon City Science High School every December of the year.

            There are three phases of examinations: first phase is composed of the Proficiency Test in Science, Mathematics, English, and Filipino. The first 500 examinees who passed this phase will undergo the second phase of the exam which is the Mental Ability Test. Those who passes the second phase will be interviewed for the final screening.

II.    Second, Third, and Fourth Years

            A student qualifies for readmission as long as:

•     he/she obtains a general weighted average of 83%.
•     he/she is not under probation due to misconduct and has no failing mark in any subject.
•     he/she is not under probation due to deportment
•     he/she has no grade below 83% in any two subjects.

( a student under probationary status is one who obtains a failing mark in any subject/violates school rules and regulations considered gross/offense/s).

•     a student who dropped in any year level due to illness may be accepted again in the following school year provided he/she can cope with the requirements.
•     all students with grades below 83% in any subject during any grading period are required to attend tutorial classes.

III.    Accredited Students

        First year students from any Private or Public School within Quezon City qualify for the Accreditation Examination at Quezon City Science High School given February of the year as long as they meet the following requirements:

•     recommendation from the school principal certifying that the student belongs to the upper 10% of the Freshman class; has a third grading rating of 85% or above in Science, Mathematics, and English and 83% in other subjects.
•     Certificate of good moral character from the school/principal/guidance counselor.
•     Medical certificate that the applicant is physically fit.
•     Parent's permit to take accreditation examination