Up to now, most schools in Brunei are under GCE, the levels are of O-level, A-level, and AS-level
Examinations are conducted by the Examinations Department of Brunei Darussalam.
The two educational qualifications, Hong Kong Certificate of Education Examination (HKCEE) and Hong Kong Advanced Level Examination (HKALE), were the two school-leaving exams until they were replaced by the Hong Kong Diploma of Secondary Education (HKDSE). The HKDSE eventually replaced the two exams by only having one public exam in high school year 3 (year 12). English Schools Foundation (though scome schools are also adopting the IB Diploma program).
GCE examinations in Malaysia were used to be conducted by the [University of Cambridge Local Examinations Syndicate], when two agencies of the Malaysian Ministry of Education took over the role with UCLES retaining an advisory role on standards.
The GCE O-Level equivalent is the Sijil Pelajaran Malaysia (SPM, formerly known in English as the Malaysian Certificate of Education (MCE)), conducted by the Lembaga Peperiksaan Malaysia (LPM, the Malaysian Examinations Syndicate). The SPM is taken by all fifth-year secondary school students in Malaysia. The SPM English Language paper is graded separately by the LPM and by UCLES (which still awards a GCE O-Level for the paper), and both grades are displayed on the results slip.
The GCE A-Level equivalent is the Sijil Tinggi Persekolahan Malaysia (STPM, formerly known in English as the Malaysian Higher School Certificate (HSC)), conducted by the Majlis Peperiksaan Malaysia (MPM, the Malaysian Examinations Council). The STPM is taken by students after a one-and-a-half-year sixth form course. The STPM is accepted for admission to universities worldwide.
Pakistan also runs the GCE education level. Some of Pakistan's top schools offers this course. A Pakistani student currently holds the world record for attaining the highest number of A's in A-Level. Haroon Tariq scored 30 A's in GCE Advanced Level. Haroon Tariq also holds the world record for most A's (28) in O-levels. He also has 29 A grades in IGCSE which is also a world record. 
Students take the O-Levels after completing Secondary 4 at age 16 for the Special and Express streams, or Secondary 5 at age 17 for the Normal Academic Stream. After that, they have the option to go on to a junior college for two years in preparation for the A-Levels or study a vocational trade and earn a diploma at a polytechnic or technical school. Increasingly, students who perform well in school are given the option to bypass the O-levels and take the A-Levels, in a scheme dubbed the integrated programme (also known as the through-train programme).
In Sri Lanka GCE Ordinary Level and GCE Advanced Level examinations are conducted by the Department of Examinations of the Government of Sri Lanka. The GCE(O/L) is normally conducted in the month of December and GCE (A/L)s are conducted in the month of August. They are conducted on an island-wide examination centres on same time. Examination entrance is restricted by a minimal number of formal school going years and laboratory field work. The majority of candidates enter the exams via their respective schools, while candidates who have finished school education can also apply as a private candidate.
The O/L examination is regarded as the qualification examination for starting on GCE(A/L). Specialization streaming is depended on the grades obtained for subjects in the O/L. The country's reputed schools admit students to their A/L, depending on the O/L grades.
The Sri Lankan University Grants commission determines the cut-off points for the selection of students to the Sri Lankan universities according to the grade points obtained in the A/L examinations based on the standard normal distribution.
Bangladesh also has the GCE A-Level and GCE O-Level. There are many schools which follow the British Curriculum.
In Cameroon, the GCE Ordinary Level examination is a 3-year course program starting from Form 3 to Form 5 (Years 9 to 11). It is usually written in Form 5 (Year 11) in Secondary schools, meanwhile the GCE Advanced Level examinations are written in Upper 6 (Year 13) in High school. Most Secondary schools in Cameroon which do the English form of education and write both the GCE A-Level and O-Level examinations were boarding schools but since then many day schools were opened which offered a complete GCE course and anyone wishing to have an English education are no more obliged to go for boarding schools. The GCE saw changes in syllabus content at the ordinary and advanced levels in some science subjects in order to adapt to the world's advancing school program.
During Easter break around March, students in these boarding schools stay for GCE courses for a week and a few days in school for extra classes in order to cover up their syllabus.
At the end of the school year, all students in other classes except the GCE candidates leave and they stay for their Revisions and preparation towards the upcoming exams in Late-May. Once the candidates finish writing in early June, they all return to their various homes, waiting to hear their results. The same thing applies for GCE candidates in day schools. The results for the GCE O-Level and A-level exams in Cameroon are announced around mid-July.