The Ordinary Legislative Procedure: How an EU Law Actually Gets Made

European Politics Fundamentals

Chapter 6 · The Ordinary Legislative Procedure: How an EU Law Actually Gets Made

Chapters 2, 3, and 4 introduced the Commission's proposal monopoly, Parliament's amending power, and the Council's qualified-majority voting separately. This chapter puts all three pieces together into the one real procedure that actually turns a Commission proposal into binding EU law — and shows how the formal, textbook version of that procedure and the way it usually plays out in practice are, genuinely, two different things.

The Formal Structure: Up to Three Readings

Parliament and Council Act as Co-Legislators, on Equal Footing

Renamed from "codecision" to the "ordinary legislative procedure" by the 2009 Lisbon Treaty, this is now the default procedure for the vast majority of EU legislation. Its defining real feature is that Parliament and the Council must both agree before a proposal becomes law — neither institution can simply outvote or bypass the other.

First Reading

Parliament examines the Commission's proposal and adopts its own position, with no fixed deadline. The Council then either accepts Parliament's position outright (the act is adopted, done) or adopts its own, different position and sends it back to Parliament.

Second Reading

Parliament has three months (extendable to four) to approve the Council's position (adopted), reject it outright by an absolute majority of its own members (the proposal fails, full stop), or propose amendments by that same absolute majority. If Parliament amends, the Council then has three months (extendable to four) of its own to approve every amendment (adopted) — or not.

Third Reading: Conciliation

If the Council doesn't approve Parliament's amendments, a Conciliation Committee is convened within six weeks (extendable to eight): the Council's own members (or their representatives) plus an equal number of MEPs, co-chaired jointly by the President of Parliament and the Council's rotating presidency. This committee has six weeks (extendable to eight) to agree a joint text. If it can't — or if either institution later rejects that joint text — the proposal is deemed not to have been adopted, and the whole process ends.

What Actually Happens: Trilogues

Real Practice Diverges Sharply From the Formal Diagram In practice, the three institutions rarely let a file run through the full formal cycle above. Instead, informal three-way meetings called trilogues — bringing together representatives of Parliament, the Council, and the Commission — negotiate a compromise text early, often well before Parliament and Council have even formally exchanged first-reading positions. More than 85% of ordinary legislative procedure files are actually agreed at first reading or the very start of second reading, almost always because a trilogue-negotiated deal was reached first and then simply rubber-stamped through the formal reading structure.

The formal three-reading procedure described above still exists as the legal backstop — the rules that apply if a trilogue deal can't be reached — but for most real EU legislation, it's trilogue negotiation, not the reading-by-reading exchange the treaties describe, that actually decides the final text.

Worked Example: The GDPR's Real Legislative Journey

The General Data Protection Regulation, 2012–2016

The GDPR is one of the most consequential pieces of EU legislation in decades, and its real legislative history traces this chapter's own procedure end to end.

25 January 2012 The European Commission publishes its draft proposal — exercising the initiative monopoly covered in Chapter 2.
12 March 2014 The European Parliament formally adopts its first-reading position.
15 June 2015 The Council adopts its own "general approach" — its negotiating mandate for the trilogue talks that follow.
Through late 2015 Trilogue negotiations between Parliament, Council, and Commission representatives work toward a compromise text.
15 December 2015 The three institutions reach political agreement in trilogue.
8 April 2016 The Council formally adopts its position at first reading — reflecting the trilogue deal already struck.
14 April 2016 The European Parliament approves that same position. The GDPR is adopted — entirely at first reading. No second reading, no conciliation, ever needed.
24 May 2016 / 25 May 2018 The regulation enters into force, with a built-in two-year transition period before it becomes directly applicable.

Regulation vs. Directive, in One Line The GDPR is a Regulation, meaning it applies directly and identically in every member state with no national implementing law required — its own real two-year gap (2016 to 2018) existed purely to give organisations time to prepare, not because any member state needed to pass its own version of the law.

The Real Cost of Trilogues: A Transparency Problem

Closed-Door Negotiations, Real Institutional Pushback On 28 May 2015, European Ombudsman Emily O'Reilly launched a formal investigation into trilogue transparency, examining whether trilogue meetings are publicly announced, which documents they produce, and whether the public can actually access them. Her real finding: trilogues are closed meetings, with a severe lack of public access to participants, agendas, minutes, or the working documents where the actual compromises get made — even though trilogues now decide the substance of most EU legislation. The Ombudsman's own recommendation was for the institutions to proactively publish the working documents used in these negotiations; as of this course's own writing, that remains only partially implemented.

This is a genuine, unresolved tension at the heart of the procedure this chapter describes: the mechanism that makes EU lawmaking fast and workable in practice is largely invisible to the public it legislates for.

Formal Procedure vs. Real Practice

Aspect	The Formal Treaty Procedure	What Usually Actually Happens
Number of readings	Up to three	Almost always resolved by the end of the first
Where the deal is struck	Formal exchanges between the two institutions	Informal trilogue negotiations, often before formal positions are even exchanged
Public visibility	Formal readings and votes are public record	Trilogue meetings and their working documents are largely closed to the public
Conciliation Committee	A real, defined fallback mechanism	Rarely reached at all — most files never need it

Hands-On Exercises

Exercise 1 — Reading the Timeline

Using the GDPR timeline above, explain why the process never reached a second reading, and identify which real date marks the point at which the outcome was effectively already settled.

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Exercise 2 — Formal vs. Real

A friend tells you the EU "always" passes laws through three formal readings and a conciliation committee. Using the real 85%-plus statistic and the GDPR example, correct this misunderstanding.

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Exercise 3 — The Transparency Tension

Explain, using the European Ombudsman's real 2015 investigation, why the very mechanism that makes EU lawmaking efficient (trilogues) is also the mechanism most criticized for lacking democratic transparency.

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Quick Reference — Chapter 6

The ordinary legislative procedure (renamed from "codecision" by the 2009 Lisbon Treaty) requires Parliament and the Council to agree on equal footing, across up to three formal readings
First reading has no fixed deadline; second reading gives each institution three months (extendable to four); conciliation gives a joint 27-Council-member-plus-27-MEP committee six weeks (extendable to eight) to agree a joint text
In real practice, more than 85% of files are agreed at first reading or the very start of second reading, almost always via informal trilogue negotiation between Parliament, Council, and Commission representatives
The GDPR (proposed 25 January 2012, adopted 14 April 2016) was resolved entirely at first reading once a trilogue deal was struck on 15 December 2015
The European Ombudsman's 2015 investigation found trilogues genuinely lack public transparency, despite deciding the substance of most EU law

What's Next

Chapter 7: Comparative National Systems: Parliamentary vs. Semi-Presidential Europe.