Even if you can take the test without presenting any diploma, you must still qualify for the Civil Service Exam with the following requirements:
Filipino citizen;
At least 18 years old on the date of filing of application;
Of good moral character;
Has not been convicted by final judgment of an offense or crime involving moral turpitude, or disgraceful or immoral conduct, dishonesty, examination irregularity, drunkenness, or addiction to drugs;
Has not been dishonorably discharged from military service, or dismissed for cause from any civilian position in the government; and
Has not taken the same level of Career Service Examination, regardless of mode, within the last three months before the date of examination (three-month prohibition period).