How to Find and Cite Puerto Rico Law

Puerto Rico's law is official in two languages, and the two texts don't always say the same thing. When they disagree, the Spanish one wins.

That rule has an address. Article 26 of the Civil Code, codified at 31 L.P.R.A. § 5348, says that when discrepancies exist between the Spanish text and the English text of a law, "prevalecerá la versión en español, a no ser que la ley disponga algo distinto." The Spanish version prevails, unless the law provides otherwise. Both languages are official for government business under Act No. 1 of January 28, 1993, at 1 L.P.R.A. § 59. Official and controlling turn out to be two different jobs.

The Civil Code you learned is gone

Act No. 55-2020 built a new Civil Code from scratch. Its last article set the thing running 180 days after approval, and approval was June 1, 2020, so the new Code took over on November 28, 2020. The article just before it, article 1819, is one sentence long. The 1930 Civil Code is repealed.

The old Code came down from the Spanish Civil Code, which reached Puerto Rico, Cuba and the Philippines by royal order on July 31, 1889. Its most quoted provision was article 1802, the rule that a person who harms another through fault or negligence has to make it good. Briefs said "Artículo 1802" the way lawyers elsewhere say "negligence."

That number now belongs to something else entirely. In the 2020 Code, article 1802 is about partition with an apparent heir. The general tort rule moved to article 1536, at 31 L.P.R.A. § 10801, and the wording barely shifted: "La persona que por culpa o negligencia causa daño a otra, viene obligada a repararlo." A person who through fault or negligence causes damage to another is bound to repair it.

So every Civil Code article number in a pre-2021 document is suspect. Not wrong. Suspect.

Two names, one abbreviation

The codification is the Laws of Puerto Rico Annotated, authorized by Act No. 395 of May 11, 1950. Article 4 of that act, at 2 L.P.R.A. § 226, gives it two names and one short form. In Spanish it's "Leyes de Puerto Rico Anotadas," in English "Laws of Puerto Rico Annotated," and it may be cited in either language as L.P.R.A. The same section makes that text prima facie evidence in Puerto Rico courts of the general and permanent laws in force.

Act 395 also paces the publishing. New editions come no more than once a decade, with cumulative supplements each year. That's why an L.P.R.A. cite carries two dates, a bound volume year and a supplement year.

29 L.P.R.A. §§ 478a-478b (2017 & Supl. 2022)

The act itself gets cited separately, and the form splits on a date. Laws approved before 1991 take a number and a full date, like Ley Núm. 104 de 29 de junio de 1955. Laws from 1991 on take a number and a year joined by a hyphen, like Ley Núm. 136-2001. Codes put the article first and the L.P.R.A. section second, as in CÓD. PEN. PR art. 96, 33 L.P.R.A. § 5145 (2021). The constitution is CONST. PR art. II, § 7, or P.R. CONST. art. II, § 7 in English.

Court rules ride inside L.P.R.A. as appendices rather than sitting in a book of their own. The rules of civil procedure are at 32 L.P.R.A. Ap. V, the rules of evidence at 32 L.P.R.A. Ap. IV. Most provisions here have two addresses then, one in the act and one in the code, and you usually want both.

The rules have no code address at all

Now the volume. Puerto Rico holds 126,854 regulation sections against 24,305 statute sections. There's no consolidated administrative code behind that number, and that's the point.

Under section 2.8 of the Uniform Administrative Procedure Act, Act No. 38-2017, at 3 L.P.R.A. § 9618, every rule an agency adopts gets filed at the Department of State in Spanish, and as a general rule it starts running 30 days after filing. An English translation is optional. The agency may file one alongside the rule or later, and section 2.8(b) says doing so has no effect on when the rule takes force.

Each filing takes the next number in a single islandwide series, in order of arrival, regardless of which agency sent it. A Planning Board zoning regulation got number 4844 on December 14, 1992. The Department of State's own rule about filing rules got 5281 in 1995, and the replacement for that one took effect on January 9, 2025 as number 9626. One queue, every agency.

Section 2.10, at 3 L.P.R.A. § 9620, tells the Secretary to stamp each filing with the date and hour, keep a permanent archive open to public inspection, and keep copies on the Department's website free of charge. So a reglamento is a document with a serial number, not a slot in a hierarchy. Cite it by agency, rule title, number and date. Lose the number and you have very little to search on.

That also explains the status picture. All 126,854 regulation sections read as in force, because a filing register shows you what's currently on file. A superseded rule isn't sitting in the set with a line through it. It's in the archive, and the rule that repealed it is in the register. The statute side does carry markers, with 24,228 sections in force, 68 repealed and 9 reserved. Agency guidance runs 1,593 in force against 48 rescinded. Court rules, 1,512 against 16.

Worked example, and it turns on a date

Say a memo crosses your desk citing 31 L.P.R.A. § 5141 for a slip and fall. That's article 1802 of the repealed 1930 Code. Is the memo wrong?

Depends entirely on when the person fell. Article 1815 of the 2020 Code, at 31 L.P.R.A. § 11720, fixes tort liability, in both its extent and its nature, by the law in force at the moment the act or omission happened. And it adds a tiebreaker. If some of the acts happened before the new Code and some after, the earlier legislation governs all of it.

For a 2019 accident, then, article 1802 and 31 L.P.R.A. § 5141 are correct. For a 2023 accident, article 1536 and 31 L.P.R.A. § 10801. For a course of conduct straddling November 28, 2020, the whole claim goes back to the old Code. Article 1814, at 31 L.P.R.A. § 11719, does the same work for limitation periods already running when the Code changed.

Check the date before you check the citation.

What else will bite

The federal courthouse works in a different language than the courthouse across town. 48 U.S.C. § 864 says all pleadings and proceedings in the United States District Court for the District of Puerto Rico "shall be conducted in the English language." Commonwealth proceedings run in Spanish.

Government offices publish consolidated PDFs of amended acts, and each one carries a note saying it is not an official compilation. Fine for reading. Take the text from L.P.R.A. before you quote it.

And when someone hands you an English rendering of a Puerto Rico statute, ask where it came from. The English is official. It just doesn't get the last word.

Facts used

All Puerto Rico corpus counts below are from Vaquill AI's US primary law data, measured 2026-09-18.

Priyansh Khodiyar

Co-Founder & CTO

Priyansh leads engineering and AI at Vaquill, from the matter workbench to drafting, document comparison, document matrix, and citation-verified research.