Which A/L stream should I choose? The six streams, the subjects each one requires, and what they open

There are six G.C.E. Advanced Level streams in Sri Lankan schools: Arts, Commerce, Biological Science, Physical Science, Engineering Technology and Biosystems Technology. You sit three main subjects, and the stream you are in decides which three you may combine. That combination, more than the stream's name, decides which university courses you can later apply for. The tables below give the rules as the Ministry of Education and the University Grants Commission publish them, each with its source, so you can check every line.

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Written by Idasara Academy · Reviewed by Samisa Abeysinghe on 6 October 2026 · Last updated 6 October 2026

Sources were read on 5 October 2026. The stream rules are as of the Ministry circular dated 26 April 2016, which the Department of Examinations still names as the rule for choosing subjects.

The six streams and the subjects each one requires

Stream The three subjects you must combine Source
Biological Science Biology, plus two of: Chemistry, Physics, Agricultural Science, Mathematics [S1] §5.3
Physical Science Three of: Combined Mathematics, Chemistry, Physics, Higher Mathematics [S1] §5.4
Commerce At least two of: Accounting, Business Studies, Economics. The third may be the remaining one, or one of: Business Statistics, Geography, Political Science, History, Logic and Scientific Method, English, German, French, Agricultural Science, Combined Mathematics or Mathematics, Information and Communication Technology [S1] §5.2
Arts Three subjects from four groups — social sciences, religions and civilisations, aesthetic subjects, languages — under the conditions in the next table [S1] §5.1
Engineering Technology Engineering Technology and Science for Technology, plus one from the third-subject list below [S1] §5.6
Biosystems Technology Biosystems Technology and Science for Technology, plus one from the third-subject list below [S1] §5.5

The third subject for both Technology streams is one of: Economics, Geography, Home Economics, English, Communication and Media Studies, Information and Communication Technology, Art, Business Studies, Agricultural Science, Accounting, Mathematics ([S1] §5.5, §5.6).

The Arts stream conditions

What the rule covers The rule Source
Social sciences group At least one subject from this group, unless you take two languages or all three national languages. You may take two, or all three, from it. The group: Economics; Geography; History; Home Economics; Political Science; Logic and Scientific Method; Accounting or Business Statistics; Agricultural Science or Mathematics or Combined Mathematics; one Technology subject; Communication and Media Studies; Information and Communication Technology [S1] §5.1.1, §5.1.6
Religions and civilisations If you take a religion, you may not also take that religion's civilisation subject [S1] §5.1.2
Aesthetic subjects One or two of: Art, Dancing, Music, Drama and Theatre [S1] §5.1.3, §5.1.6
Languages One or two languages. All three subjects may be languages only in the combinations the circular lists [S1] §5.1.4

Three things the stream name does not tell you

What to check The rule Source
Your school's list A school may offer only the combinations it has enough students, timetable room and facilities for. Ask your school which combinations it runs before you decide [S1] §6.0
A combination outside the streams It is recorded as not belonging to a specific stream, and no island rank or district rank is issued with the results [S1] §7.0
The two extra papers Besides the three main subjects there is the Common General Test, which you must pass to enter a state university, and General English, which is not counted for admission [S2] §3

What O/L results do I need for each stream? This page does not state them, because we could not read the Ministry's current Grade 12 admission circular ourselves, and other websites give different answers. Your school's principal applies that circular and can tell you exactly which O/L results each stream needs.

What each combination opens at university

The University Grants Commission decides which A/L subjects each degree course accepts, and publishes them every year in its University Admissions Handbook. The rows below are the examples named in the Ministry circular. They show how the rule works; the Handbook for your own admission year is the authority ([S1] §9.2).

Course of study A/L subjects asked for Source
Medicine, Dental Surgery, Veterinary Science Biology, Chemistry and Physics — all three [S1] §9, course 12
Biological Science Biology and Chemistry, plus one of: Agricultural Science, Mathematics or Combined Mathematics, Higher Mathematics, Physics [S1] §9, course 18
Management, Commerce, Estate Management and Valuation Business Studies, Economics and Accounting; or at least two of them plus one subject from a list in the circular [S1] §9, course 9
Arts Three subjects chosen under the Arts stream conditions [S1] §9, course 1
Law Three subjects from lists that include Arts, Commerce and Science subjects — and at least a Credit (C) for English at the O/L, or an Ordinary pass (S) for English at the A/L [S1] §9, course 50

Two things follow from these rows. A Biological Science student who does not take both Chemistry and Physics is still in the stream, but does not have the three subjects Medicine asks for. And an O/L result can still count years later: Law asks for O/L English.

How selection works: the Z-score and the cut-off

Term What it means Source
Minimum requirements At least an S grade in all three approved subjects in one sitting, within a maximum of three attempts, and at least 30% for the Common General Paper. Meeting them makes you eligible to apply; it does not give you a place [S3]
Z-score The score candidates are ranked by for selection. The Common General Test mark is not used in calculating it [S2] §3, [S4] Q7
Cut-off The minimum Z-score that was enough for one course at one university, for candidates from one district, in one year. It is published after selection [S4] Q9, [S5]
Why your district matters Places are filled 40% on all island merit, 55% by district quota and 5% from educationally disadvantaged districts, so the same course has a different cut-off in each district. Your district is normally that of the school you were enrolled in while studying for the A/L; the Handbook gives the exact rule [S4] Q15, Q22
Why last year's cut-off is not a promise Cut-offs depend on that year's Z-scores, the order of preference candidates give, and the number of places. The Commission tells candidates not to depend on a previous year's figures [S3], [S4] Q7, Q12

The cut-offs for the 2024/2025 intake, for every course and district, are in the Commission's own table: Minimum Z-scores 2024/2025. We do not copy figures from it onto this page, so that a number here can never be out of date or misread.

What to do now

  1. Ask your school which combinations it offers.
  2. Find the degree courses you might want, and read the A/L subjects each asks for in the University Admissions Handbook.
  3. Try the subjects before you commit. The A/L stream selector is free and needs no account, and the Z-score tool shows how a set of marks turns into a score.

Then open the subject you are least sure of and read a real lesson: A/L Biology, A/L Chemistry, A/L Physics, A/L Combined Mathematics.

More: how university entrance works · after A/L: higher studies and jobs · plans and prices.

Questions students ask

Is one stream better than another? No stream is better. A stream is right when its subjects are ones you can do well in and its combination is accepted by the courses you want. The tables above are for checking the second part.

Does my combination limit which universities I can apply to? It limits the courses, not the universities. The Commission says the courses a candidate may apply for depend on the subjects offered at the A/L ([S3]).

Sources

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