What Is a Law in Poland? Where the Rules Actually Come From

Poland is a civil-law country: the law is the body of written acts adopted through a fixed procedure, and courts apply that law rather than create it. There is no binding precedent. The 1997 Constitution settles where the rules come from in a single provision, Article 87, which lists a closed, ranked set of sources of universally binding law (Polish: źródła prawa powszechnie obowiązującego). In order of authority, the five are:

1. the Constitution (Konstytucja),
2. ratified international agreements (ratyfikowane umowy międzynarodowe),
3. statutes (ustawy),
4. regulations (rozporządzenia), and
5. acts of local law (akty prawa miejscowego), binding only within the issuing authority’s territory.

This article explains each rung, how a statute differs from a regulation, the separate category of internal law that binds only officials, the one exotic path to statute-level law outside Parliament, and the practical part: exactly where a Polish law legally comes into existence and how to find its text. It closes with the live 2024–2025 disputes over who may publish rulings and whether EU law sits above the Constitution: the list in Article 87 has not changed since 1997, but the institutions around it are being fought over right now.

Civil law, not common law: why judges don’t make law here

Poland belongs to the continental civil-law tradition, the same family as Germany and France, not the common-law tradition of England, the United States, or Ireland. The practical consequence is straightforward: the primary source of law is the enacted text (the statute, the regulation, the code), and a judge’s task is to apply that text to the facts. Polish legal theory formally rejects the idea of judge-made law. A court decides the case in front of it; its reasoning does not become a rule that binds other courts in later cases.

This is the single point that surprises people arriving from a common-law country. In England or the United States, a higher court’s ruling is itself law that lower courts must follow. In Poland it is not. If you want to know what the law says on a question, you read the relevant ustawa or code, not a line of cases.

Does Poland use precedent?

Not in the binding, common-law sense. A ruling decides its own case and no other. There are two narrow features that look adjacent to precedent but are not the same thing:

• The Supreme Court (Sąd Najwyższy) can adopt resolutions and enter them as “legal principles” (zasady prawne). These are adopted by an enlarged panel and bind only other Supreme Court panels. They do not bind the lower courts.
• When a lower court refers a legal question upward, the answer it receives binds only in that particular case.

So while higher-court reasoning carries strong persuasive weight in practice, no Polish judgment creates a precedent that lower courts are legally obliged to follow. The written act remains the law.

The hierarchy of Polish law (Article 87): the five-rung ladder

Article 87 is a hierarchy: a lower-ranked act may not contradict a higher-ranked one, and where they conflict the higher act prevails. This is the konstytucyjny system źródeł prawa, the constitutional system of sources of law, and it is closed: an act that does not fit one of these categories is not a source of universally binding law.

The rest of this article walks each rung in turn.

Rung 1: the Constitution (the supreme law)

The Constitution of the Republic of Poland, adopted in 1997, sits at the top. Article 8 states that “the Constitution shall be the supreme law of the Republic of Poland,” and, unusually for a continental constitution, that its provisions “shall apply directly” unless it says otherwise. Nothing below it may contradict it. A statute that conflicts with the Constitution is, in principle, unconstitutional.

Article 87 itself sits inside the Constitution, which is why the list of sources is so stable: changing it would require a constitutional amendment, not an ordinary statute. The list has not changed since 1997.

Rung 2: international treaties and EU law, and the fight over which is supreme

Below the Constitution come ratified international agreements. The Constitution gives some of them real bite over ordinary statutes:

• A treaty ratified with prior consent granted by statute has, under Article 91(2), precedence over a statute where the two cannot be reconciled.
• Article 91(3) provides that law made by an international organisation (in practice, European Union law) applies directly and takes precedence in the event of a conflict.
• Article 90 is the constitutional hook that allowed Poland to transfer certain state competences to the EU on accession in 2004.

This is where the hierarchy stops being tidy. EU law clearly outranks ordinary Polish statutes. What it does not settle on the face of the text is the relationship between EU law and the Constitution itself: Article 8 calls the Constitution supreme over everything, while Article 91 gives EU and certain treaty law precedence over statutes. The slot EU law occupies relative to the Constitution is therefore contested by design. That tension became the central legal fight of the last five years, covered in the final section below. For now the safe statement is: EU law sits above Polish statutes; whether it sits above the Polish Constitution is exactly the question Polish and European institutions answer differently.

Rung 3: statutes (ustawy): what an ustawa is

An ustawa is a statute, an act of Parliament, the workhorse of Polish law. Statutes are passed by the Sejm (the lower house) and the Senat (the upper house), and signed by the President. Most of the law a resident actually deals with (the civil code, the labour code, tax law, the law on foreigners) takes the form of ustawy.

A statute can regulate any matter not reserved to the Constitution, and it is the level at which rights and duties binding on everyone are normally created. Everything below it on the ladder, regulations and local acts, must have a statute behind it.

Rung 4: regulations (rozporządzenia): how they differ from statutes

A rozporządzenie is a regulation: secondary, executive legislation that fills in the detail a statute leaves to be specified. This is the rung most often confused with statutes, so the distinction matters.

The difference is one of source and dependency, set by Article 92:

• A statute (ustawa) is made by Parliament and stands on its own.
• A regulation (rozporządzenie) may only be issued by one of a few named authorities: the President, the Council of Ministers, an individual minister, or the National Broadcasting Council (KRRiT). And it may only be issued on the basis of a specific statutory authorisation, to carry that statute into effect.

The rule of thumb: no statutory delegation, no valid regulation. A regulation that strays beyond, or lacks, its enabling statute can be struck down. A regulation can never contradict the statute it serves, and it ranks below every statute.

Rung 5: acts of local law (akty prawa miejscowego)

The lowest rung is local law: resolutions and ordinances issued by local-government bodies (such as a gmina council) and by regional government administration. Under Article 87(2), these are genuinely sources of universally binding law, but only within the territory of the authority that issued them. A municipal act binds everyone in that municipality and no one outside it, and it must conform to all the higher rungs above it.

Universally binding law vs internal law (Article 93)

The five rungs above are all universally binding law, law that binds everyone, including citizens, residents, and the courts. Polish law recognises a second, separate category that the popular “five sources” list leaves out: internal law (prawo wewnętrznie obowiązujące).

Under Article 93, resolutions of the Council of Ministers and orders of the Prime Minister and ministers are of an internal character: they bind only the organisational units subordinate to the body that issued them. They are not a basis for decisions affecting citizens, and they cannot create rights or duties for the general public. The same internal-only status applies to the various regulaminy i statuty, the rules of procedure and charters that organisations adopt to govern their own workings.

This two-bucket framing (universally binding law on one side, internal law on the other) is the cleanest way to understand the system, and it is the half competitors most often skip. If a rule binds only officials, it lives here, outside Article 87’s list.

The edge case: a regulation with the force of statute (Article 234)

There is exactly one route to creating law at statute level without Parliament, and it is an emergency mechanism. Under Article 234, the President, acting on a request from the Council of Ministers, may issue regulations having the force of statute (rozporządzenia z mocą ustawy), but only during a state of martial law (stan wojenny), and only when the Sejm cannot assemble. Such regulations are subject to approval by the Sejm at its next sitting.

This is genuinely exceptional. It is the only constitutional path by which a non-parliamentary body can produce statute-rank law, it is tied to one of Poland’s extraordinary states (stany nadzwyczajne), and it has never been used under the 1997 Constitution. For everyday purposes the rule holds without qualification: statute-level law comes from Parliament.

Where a law legally lives: Dziennik Ustaw, Monitor Polski, ISAP

A Polish law is not in force the moment it is signed. Under Article 88, a statute, a ratified treaty, or a regulation enters into force only after it is published. The mechanics are set by the Act of 20 July 2000 on the promulgation of normative acts. Publication is not a formality. It is the moment the law legally comes into existence.

There are two official gazettes and one essential search tool:

• Dziennik Ustaw (the Journal of Laws) is the official gazette for the highest-rank acts: the Constitution, statutes, ratified treaties, and regulations. If a universally binding law is in force, its authoritative text was published here.
• Monitor Polski (the Polish Monitor) is the official gazette for lower-rank and internal acts: resolutions, certain ministerial orders, official announcements.
• ISAP (Internetowy System Aktów Prawnych) is the free, searchable database run by the Sejm at isap.sejm.gov.pl.

Both gazettes are produced by the Government Legislation Centre (RCL).

Dziennik Ustaw vs ISAP: official text vs free database

These two are easy to mix up. The distinction is official versus convenient:

• The Dziennik Ustaw is the official act of promulgation: the legally authoritative version of the text, the one that makes the law real. Since the amendment of 4 March 2011 (effective 1 January 2012), the printed edition was discontinued: the only legally authoritative version is now the electronic Dziennik Ustaw at dziennikustaw.gov.pl.
• ISAP is a reference database. Its great value is consolidated texts: a statute with all its later amendments already worked in, so you read the current version rather than reassembling it from a chain of amending acts. ISAP is where you actually search and read; it points back to the Dziennik Ustaw entries (the poz., or position, numbers) that are the official source.

In short: read it on ISAP; cite it from the Dziennik Ustaw.

When a law takes effect (Article 88 and vacatio legis)

Between publication and the day a law starts to bind there is usually a deliberate gap, called vacatio legis: the breathing space that lets people learn a new rule before it applies. The default is 14 days from publication, under the Act of 20 July 2000. But it is only a default: many acts, especially large ones, set their own commencement date, which may be shorter, longer, or pinned to a specific calendar day. Always check the final provisions of the act itself rather than assuming 14 days.

Even this is contested: the 2024–2025 fight over publishing and EU primacy

The list in Article 87 is stable. The institutions that make, review, and publish law are not. In 2024–2025 two disputes touched the very questions this article is about: where a ruling legally exists, and whether EU law outranks the Constitution.

Publication of Constitutional Tribunal rulings. Following a Sejm resolution of 6 March 2024 addressing the 2015–2023 constitutional crisis, the government stopped publishing Constitutional Tribunal (Trybunał Konstytucyjny) judgments in the Dziennik Ustaw, on the view that the Tribunal is no longer legitimately composed. The Tribunal and other critics argue this breaches Article 190(2), which requires its rulings to be published without delay. The everyday-boring gazette has, in other words, become the dispute itself.

The Tribunal’s counter-ruling (23 September 2025). In a 2025 ruling, the Constitutional Tribunal held that the statutory rule giving the Prime Minister exclusive power to publish its judgments is unconstitutional, reasoning that a ruling takes legal effect on its announcement, not on the technical act of printing it in the gazette. This goes to the heart of “where a law legally lives”: the court and the publisher disagree over whether ink in the Dziennik Ustaw is what makes a ruling real.

EU primacy (Court of Justice judgment, 18 December 2025). The deepest fight concerns EU law versus the Constitution. In 2021 the Constitutional Tribunal ruled (cases K 3/21 of 7 October 2021 and P 7/20 of 14 July 2021) that certain provisions of the EU treaties were incompatible with the Polish Constitution, asserting the Constitution’s supremacy. On 18 December 2025, the Court of Justice of the European Union, in Commission v Poland (Case C-448/23), held that those Tribunal judgments themselves breached EU law; the Polish government withdrew its defence and accepted the complaint. An important precision: the Court found the 2021 rulings incompatible with EU law. A CJEU judgment does not by itself erase a Tribunal ruling from the Polish gazette. The result is that the two institutions answer the headline question in opposite directions. The Tribunal says the Constitution is supreme; the Court of Justice says EU law has primacy. That is precisely why the slot EU law occupies in the hierarchy remains contested rather than settled.

None of this changes Article 87’s list. It changes who legitimately makes, reviews, and publishes the law: the institutional plumbing around the list, not the rungs themselves.

Frequently asked questions

What are the five sources of law in Poland? Under Article 87 of the Constitution, the five sources of universally binding law are: the Constitution, ratified international agreements (which include EU law), statutes (ustawy), regulations (rozporządzenia), and acts of local law (akty prawa miejscowego). Note two caveats this short list elides: EU law enters through the “ratified international agreements” rung and has its own precedence rules, and there is a separate category of internal law (Article 93) that binds only officials, not the public.

Is Poland a common-law or a civil-law country? Civil law. The primary source is the written, enacted act, and judges apply the law rather than make it. There is no binding precedent.

Does Poland use precedent? Not in the binding sense. Court rulings decide their own cases. Supreme Court “legal principles” bind only other Supreme Court panels, not the lower courts.

What is the difference between an ustawa and a rozporządzenie? An ustawa (statute) is passed by Parliament and stands on its own. A rozporządzenie (regulation) is executive legislation issued by a named authority only under a specific statutory authorisation, to carry a statute into effect. The regulation ranks below the statute and cannot contradict it.

What is the most important source of law in Poland? The Constitution. Article 8 makes it the supreme law; no other act may contradict it.

Where do I find the official text of a Polish law? The official, legally authoritative version of high-rank acts is published in the Dziennik Ustaw, electronic-only since 1 January 2012 (dziennikustaw.gov.pl); lower-rank and internal acts appear in Monitor Polski. For reading and searching, including consolidated, up-to-date texts, use the Sejm’s free ISAP database (isap.sejm.gov.pl).

When does a new Polish law take effect? Only after publication (Article 88). The default vacatio legis is 14 days from publication, but many acts set their own commencement date, so check the act’s final provisions.