Social elections glossary: X, Y, TBU, WC, CPPW and every acronym
The social elections procedure comes down to a handful of acronyms and coded dates. Once you know them, everything else reads easily. Here is the reference glossary, each term defined in one sentence, grouped by theme. Keep this page handy: our other articles link back to it on every technical term.
The key dates
Day Y — Voting day. The whole procedure is built around it. For 2028 it falls in May 2028, within a window fixed by law. Each company picks its own day Y inside that window.
Day X — The legal pivot: the day the company officially announces the election date. It sits 90 days before day Y, around February 2028. Most deadlines are counted as "day X plus" or "day X minus" a number of days.
Day X-60 — The real start of the procedure, 60 days before day X, so late 2027. The employer communicates the TBUs, headcount and management functions. The first legal obligation therefore falls in late 2027, not in 2028. The full calendar is in the countdown.
Day X+35 — Deadline for the unions to submit their candidate lists.
Reference date — The date used to assess seniority and employment when drawing up the voter lists. It is not voting day: a person can vote in May 2028 if they meet the conditions on that earlier date.
The elected bodies
WC (Works Council) — The body for economic and social consultation, elected in companies with at least 100 workers. It is informed and consulted on how the company is run, the accounts, employment.
CPPW (Committee for Prevention and Protection at Work) — The body responsible for well-being and safety, elected from 50 workers. It is the lowest threshold, so the most widespread body.
Union delegation — The unions' representation inside the company. It is not elected during the social elections, but it plays the representation role in companies under 50 workers, where there is neither a WC nor a CPPW.
The scope
TBU (technical business unit) — The unit for which the vote is organised, and against which the 50 and 100 thresholds are counted. It does not necessarily match the company: one company can contain several TBUs, several companies can form only one. It is the most misunderstood concept of the procedure — worked through with examples in the TBU explained case by case.
Economic autonomy — One of the two tests that define a TBU: its own management, an identifiable activity.
Social autonomy — The other test: a community of workers with its own cohesion, language and location. When in doubt, the social tests take priority, and the split that creates the most representation wins.
Who votes, who is elected
Electorate — Everyone with the right to vote: under contract, with the required seniority on the reference date. Temp workers are included under conditions since 2024. The detail is in who gets to vote.
Electoral college — A group of voters who vote separately and elect their own representatives. The standard colleges: blue-collar, white-collar, young workers (from 25 people under the age of 25) and executives (for the WC, from 15 people).
Senior management staff — The people who represent the employer. They do not vote and cannot stand as candidates. The line with "executives" turns on the real functions, not on the job title.
Executives (cadres / kaderleden) — Full members of the electorate: they vote and, for the WC, form a separate college from 15 people. Not to be confused with senior management staff.
The process and the result
D'Hondt method — The system for allocating seats between the lists, based on the number of votes. It is the same method used in Belgian political elections: you divide each list's votes by 1, 2, 3… and award seats to the highest quotients.
Polling committee (bureau de vote) — The body that runs and supervises the vote on day Y: a president, a secretary, and the witnesses appointed by the lists.
Witness — A person appointed by a list to observe the voting and counting, and to guarantee that everything is done properly.
Electronic voting — Voting through an approved computer system, allowed under conditions: agreement within the WC or CPPW, guarantees of secrecy and integrity. It replaces or complements paper voting.
Postal voting — Voting by mail, allowed in certain cases (remote or absent workers), subject to agreement and procedure.
The institutions
FPS Employment — The Federal Public Service Employment, Labour and Social Dialogue (SPF Emploi / FOD WASO). The administration that frames the social elections, publishes the dates and the official forms.
Labour court — The court that settles procedural disputes: challenges to the TBUs, to the voter lists, appeals against the results.
In short
The whole procedure fits inside these acronyms: a day Y in May 2028, a day X 90 days before, a day X-60 in late 2027 to launch operations; thresholds of 50 (CPPW) and 100 (WC) counted per TBU; separate electoral colleges; the D'Hondt method for the seats. Once this vocabulary is in place, the rest follows naturally.
To see how these pieces fit together over time, read the 2028 social elections countdown. A question about your own case? Let's talk.
