1984–1998

The most common/known Lyceum is the General Lyceum (Greek: Γενικὀ Λύκειο, Geniko Lykeio).

In the first 2 grades, all students are taught the same subjects. In 3rd grade, students followed a core programme of general education and each Desmi (Α, Β, Γ, and Δ) followed a specialized program (Greek: Δέσμη, Δέσμες / Desmi (singular), Desmes (plural)).^[4]

An Apolytirio of Geniko Lykeio included the GPA (scale 0–20), student's conduct information and consisted of:

From 1984 until 1998 only the total score of the Panhellenic Examinations (Greek: Πανελλήνιες / Πανελλαδικές Εξετάσεις) was accepted for the Higher Education Institutions (HEIs). The total Score was calculated from the individual scores, with one of the subjects having a higher weight percentage. e.g. for A Desmi: Mathematics, B Desmi: Biology, etc.

The 4 Desmes (A,B,Γ and Δ) were:^[5]

Students had to preselect their choices in a numerical order of preference—using the bases of last year's Panhellenic Examinations' only as a guide—and submit them to their school on a given deadline, using a 4-pages machine-readable document (Greek: μηχανογραφικό δελτίο, michanografiko deltio). The results of the National Examinations determined not only who will pass into highest/higher education but also next year's bases.

The total individual score for every subject was 0–160^[4] which was the sum of the 2 examiners' scores based on the scale 0–80 each. A remarking by a 3rd examiner would determine the final score if there was a large difference between the first two scores.

Maximum total score = ((160 x 1.15)+ (160 x 0.95) + (160 x 0.95) + (160 x 0.95)) x 10 = 6400 units

• Units: (Greek: μόρια, moria (plural)), same numeric format with the bases.

First, the scores for every student and later the bases for each course were published in every school across the country, directly from the Ministry of Education and Religious Affairs. Bases were also being broadcast on Greek TV during the day.

It was allowed to keep the individual subjects' scores (up to 3) and resit on exams to increase the total score, but only for 2 more examinations.^[5]

1999–2004

There are three grades in Eniaio Lykeio and each grade is divided in classes.

The 1st grade of Eniaio Lykeio operates as an orientation year with a general knowledge programme.

The 2nd grade includes three directions: Humanities (Θεωρητική Κατεύθυνση), Science (Θετική Κατεύθυνση) and Technology (Τεχνολογική Κατεύθυνση).

In the 3rd grade we have again the three directions but the Technology direction operates in two courses: i) the Technology and the Production course and ii) the Information Science and Services course.

In Eniaio Lykeio, there is the Support Teaching Programme. This programme can be attended by those pupils who wish to do so, regardless of their performance.

Right of entrance have only the holders of the Apolytirio lyceum certificate.^[6]

The written examinations in the subjects, either at school's level or at national level, count equivalently towards the Apolytirio's GPA.^[7] On the contrary, for entrance in highest education only the subjects examined nationally in written form are being considered.^[7] The Apolytirio is detached completely from highest education's entrance.^[8]

2005–2013

Panhellenic National Level Examinations involve 6–7 subjects of the General Lyceum (3rd grade).^[9] Besides the Lyceum Diploma (Apolytirio), the achievement score on a certificate awarded (Βεβαίωση, Bebaiosi, 2002 till the phasing-out of the old system after 2016) takes into account final year school grade (school level evaluation) and the grades on 6 subjects of the National Examinations.^[10][11]

2014 - 2020

For the General Lyceum (GEL) 4 orientation groups existed^[12] including 4 subjects^[13] each :(I) Humanities, Law and Social Sciences (II) Sciences (III) Health Sciences (IV) Economic and Computer Studies.

In 2019, the Ministry of Education under Kostas Gavroglou of SYRIZA, decided to replace Latin with sociology in the school curriculum. This decision was not met without opposition from academics related to classical humanist studies, who called the move "anachronistic" and the major opposition party, New Democracy.^[14] In 2020,the Ministry of Education under Niki Kerameus (ND) reinstated Latin in the school curriculum, again with opposition from SYRIZA and academics related to Sociology.^[15]