Git for the US Code (lexifina.com)
223 points by alansaber 6 hours ago
kfogel 4 hours ago
NYT, 2007:
"... Think of what version control software could mean for the Congress [...]. If bills were created under a system where strike-throughs and additions were carefully tracked, the public would know which legislator made which change to a proposed piece of legislation as it made its way through the Capitol.
At last, there would be transparency in the legislative process. Best-case scenario, it would shame legislators from inserting language against the public interest and only meant to reward political contributors; at worst, it would make such insertions public and allow the voters to punish the politicians who made them. ..."
(from https://www.nytimes.com/2007/07/23/business/media/23link.htm... )
jonahhorowitz 3 hours ago
I've always wanted this. It's such an obvious idea when you're a software engineer.
refurb an hour ago
The system would be gamed by the politicians.
Insert language you know will never get enough votes
Don’t strike out but add language to make it useless
Plus the bill sponsor often makes changes others ask for, so the true author isn’t noted
It would be a mess and ignored by the public after a while
somenameforme 20 minutes ago
DavidSchor 39 minutes ago
3form an hour ago
undefined 33 minutes ago
blitzar 7 minutes ago
lopis an hour ago
sixdimensional 3 hours ago
Same. What I would like to see is Git for non-technical users, built as a public platform that is open source, hosting this.
I do think there are some Markdown-based open source projects that might fit the bill.
unsnap_biceps an hour ago
p-e-w 2 hours ago
p-e-w 2 hours ago
We don’t need version control for legislative bills. We need journalists that track down who tried to insert what, summarize it, and present it to the public with context. That would satisfy the oversight purpose without getting lost in technicalities.
Our problem is that the press isn’t doing their job, not that legislation doesn’t have a commit graph. The latter, even if it existed, would not fix the former.
aspect0545 2 hours ago
safety1st an hour ago
bahmboo an hour ago
callmeal 2 hours ago
faangguyindia an hour ago
mschuster91 an hour ago
teiferer 2 hours ago
lily121 3 hours ago
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JumpCrisscross 3 hours ago
> it would shame legislators from inserting language against the public interest and only meant to reward political contributors
You’d just got a system of favors for who inserts what language. You’d hand tough edits to your safe-seat colleagues and insert messaging amendments designed to get voted down for own comms.
When a measure becomes a target yada yada.
(Note: this proposal is for the U.S. code. Not bills. Git for the USC works.)
citizenpaul 2 hours ago
99% of the legislation changes are made by 20 something interns, on behalf of someone.
Henchman21 an hour ago
Indeed, both the name of the intern and the attribution on behalf-of should be required in the signed commit.
kelseyfrog 2 hours ago
Such a requirement would not do what you think it would. There would not be names legislator or even aids as commit authors. The commit authors would be members of the House Office of the Legislative Counsel[1].
The House Office of the Legislative Counsel is non-partisan, impartial, and confidential. Whether transparency has merit or not, tracking provenance would make the office partisan. Is more partisanship in government not a concern?
The second issue with transparency is that communication between legislators and legislative counsel member is subject to the attorney-client relationship. Breaking attorney-client privilege is a serious decision. Knowing how such a change would affect the organization and its members is not something to be taken lightly.
A more convincing argument for transparency would address impartiality and confidentiality. This is pretty clearly a Chesterton's fence type situation where advocating to change a system should anticipate criticisms. Addressing opposition preemptively is an implicit demonstration of knowing why the system exists which is table stakes for changing it.
JoshTriplett 12 minutes ago
> Whether transparency has merit or not, tracking provenance would make the office partisan.
Tracking who added what language is in no way partisan.
zoobab an hour ago
The authors are lobbyists of big corporations nowadays.
Ericson2314 5 hours ago
The Hacker News Community (hah) needs to lobby hard to pass a law (what boostrapping!) to require the https://en.wikipedia.org/wiki/Office_of_the_Law_Revision_Cou... to maintain the repo as part of their duties, and do it retroactively for the entire history of the US Code.
It's a simple idea; it's cheap; there are no outstanding technical questions; it benefits almost everyone. Let's get this done.
JumpCrisscross 5 hours ago
> it benefits almost everyone
I want to see a practical benefit to maintaining this with public funds versus the usual redlines.
AdieuToLogic 3 hours ago
>> The Hacker News Community (hah) needs to lobby hard to pass a law (what boostrapping!) to require the https://en.wikipedia.org/wiki/Office_of_the_Law_Revision_Cou... to maintain the repo as part of their duties, and do it retroactively for the entire history of the US Code.
> I want to see a practical benefit to maintaining this with public funds versus the usual redlines.
The US government works for the people and, as such, changes made to the US Code over time must be traceable, discoverable, and therefore justifiable by or condemnable to those who are responsible for said changes without fear or favor.
That is as practical as it gets.
JumpCrisscross 3 hours ago
danielmarkbruce 5 hours ago
why not just do it?
Ericson2314 4 hours ago
Because I have want my government to use the right tool for the job.
I don't want to privatize this core civic function to some NGO.
danielmarkbruce 2 hours ago
TomAbel 5 hours ago
Reminds me of a similar project for french law
French bills evolution versioned in git and visualized The Law Factory: french bills as git, opendata and dataviz https://www.lafabriquedelaloi.fr/
"Law is Code" on The Law Factory: french bills as git, opendata and dataviz - https://news.ycombinator.com/item?id=7817357 May 2014 (0 comments)
Xirdus 2 hours ago
Poland has an official, somewhat manual version of this - the ISAP system.
Actual bills are written in the form of patches ("§1. In the law X paragraph 5, the words "such and such" are replaced with "this and that". §2. The law X paragraph 4 is striked. §3. After law X paragraph 8, a new paragraph 8a is added that says "etc. and so on".)
After a patch or a collection of patches are passed, they are combined together and a unified version of the law is published. These documents aren't technically the law, they just show a snapshot of what the law is at the specific moment.
ISAP system is an online collection of all bills that were passed, plus crosslinks between laws that change/supercede/otherwise interact with each other, plus current and archival unified versions, plus related administrative orders and other miscellanious documents. Makes looking up laws and changes to laws very easy.
sam_lowry_ 2 hours ago
It's the European law, inspired mostly by French, IIRC. Belgium has the same, for instance.
Xirdus 2 hours ago
LelouBil an hour ago
And the officially maintained website (that only tracks the final law changes instead of the whole process): https://www.legifrance.gouv.fr/
pcblues 5 hours ago
I hadn't thought of using git to track the changes in legislation. This is a cool idea.
In Australia, I spent a bit of time trying to work out how to find which politician voted for what (both at state and federal level), so that when elections come, you can single out the individuals who voted for what legislation. I think AI may make this easier, but the challenge is in not spamming the "free and open" access to the online record of our legislation.
So far, it's probably a one-person $50K per year job to do this task manually, and the language of the public legislation record didn't lend itself easily to determining the laws or rights that actually changed when bills were passed into legislation. They are explicitly stated, but hard to distill with regexes, filters or other analysis tools (e.g. "Who voted to stop electric scooters going over 25km/h?") If you try reading the legislation, you will know what I mean.
"A complete and open record of the proceedings of our parliament" still needs people spend a good chunk of time interpreting and summarising it (e.g. the media, commentators, etc) which means it's a time-consuming hobby or a paid gig.
kneyed 3 hours ago
https://theyvoteforyou.org.au/
> How does your MP vote on the issues that matter to you?
previously covered on hn:
chrysoprace 3 hours ago
https://theyvoteforyou.org.au/ is a good resource at a federal level, but I don't know of a state or local equivalent.
awesome_dude 4 hours ago
> In Australia, I spent a bit of time trying to work out how to find which politician voted for what (both at state and federal level), so that when elections come, you can single out the individuals who voted for what legislation.
That's an interesting project - I am guessing it's only targeting federal level, but could also include state level
The first problem I have in my mind is proxy votes, and votes that are made mandatory by the party they belong to - eg. a backbencher would struggle to go against the wishes of their party unless they felt it was worth risking their career over
> "A complete and open record of the proceedings of our parliament" still needs people spend a good chunk of time interpreting and summarising it (e.g. the media, commentators, etc) which means it's a time-consuming hobby or a paid gig.
https://www.aph.gov.au/parliamentary_business/hansard and (linked from that page) https://www.aph.gov.au/Parliamentary_Business/Chamber_docume... would likely be good places to start
ekns 40 minutes ago
I'm doing this as open source for all amendment-driven law for the world. Finnish/Estonian law basically solved now but US/UK are a lot more complex to do correctly for some reason.
Now major version coming within 1 month probably with many architectural changes. The thesis is that it's basically all doable as a compiler but there may be certain cases which are irreducibly ambiguous and need human/AI to adjudicate them. The rest must be deterministic.
demibabs 3 hours ago
When I read AI-generated text, my eyes just start glazing over… it really is hard to read.
The idea is cool though.
silisili 3 hours ago
Same. I don't know if it's the word choices or just me recognizing it as AI and subconsciously feeling cheated.
As an aside, my city FB group(small town, basically the local forum and news) has been absolutely flooded with AI 'flyers', and I have the same reaction. I can't put my finger on the exact reason, maybe the busy-ness, but they're repelling to my eyes.
Luckily after about 6 months of this now they're starting to get heavy pushback.
mrinf1nity 3 hours ago
My brain instantly turns off from reading it too, you're not the only one.
verytrivial 31 minutes ago
"TeraText for Legislation"[1] has done this, specifically point in time reconstruction per amendments, for a couple of decades.
It uses a very 90s set of technologies, esp. XML, and is the golden source for legislation is a number of places around the world.
It is/was a very consulant-driven product and tightly coupled to a "secret sauce" database backend that no one really wants to use, but still, kind of cool.
aizk 4 hours ago
If you're like me and also eager for cool uses for git, I'll share a cool one I use -- try out git for your resume! Commits change as you progress in life, and make branches for individually tailored resumes.
Blew my mind when I realized I could do that.
holtwick an hour ago
German Constitution "Grundgesetz" on Github with proper time stamps https://github.com/c3e/grundgesetz
scronkfinkle an hour ago
I've been working on this problem for several months now: https://www.wordstodata.com/
A surprising amount of tracking and diffing in legal texts is actually very different to git. It's a trap to assume software version control fits the needs for legal work.
burnJS 5 hours ago
I had this idea over 10 years ago but never finished it. I hope this takes off. I do fear it's not very practical for many big pieces of legislation which are often written in secret.
Ericson2314 5 hours ago
Don't worry about that. Even if we only saw voted-upon revisions in the Git history, it will still be a huge improvement.
Version control for the public parts will make both public and secretive law-drafting better.
SoftTalker 5 hours ago
Why should any bit of the lawmaking process be secret?
dizzant 3 hours ago
Transparency has a cost. There are several good reasons, but my favorite is intellectual freedom. Policy makers would be much less likely to explore bold reforms or risky bipartisan compromises if their draft quality notes and correspondences were publicly tied to their political reputation. It takes significant work to produce successful legislation, and much of that work can be productively and safely done without direct public oversight. This is the same reason an individual might value a private journal.
If you have a problem with your representative’s behavior, call their office and ask about it. They will certainly have a reason. Tell them if you disagree, and vote when you can.
autoexec 3 hours ago
EddieRingle 5 hours ago
Likewise, a younger, more idealistic me thought it'd be great to use a GitHub-esque platform for laws. Pull Requests to suggest laws, gated behind reviews/approvals, branches so each house could work on their own versions before finally reconciling and merging into the Code, literally.
cco an hour ago
Given that chicken scratch in the margins gets into bills that are voted upon, it seems unlikely that this would be accepted by Congress. Love it though.
barrrrald 5 hours ago
Cool idea but I can't find anywhere on the linked page to try it? It reads like a neat concept but it's not clear if this is a thing they've actually made or not (or am I just missing something super obvious?)
LPisGood 5 hours ago
Wow! This is very cool. I had an idea for something very similar to this when I found out the US federal government offered API keys, maybe three or four years ago. I found that while Congress did list bill revisions as they were made the format and retrieval of these was not an easy task. The idea was that I wanted to look at any line of any bill and see who proposed it that particular line’s inclusion.
For the record, and feel free to steal it if you like it, I called it “G(overnm)it-blame”
BrokenCogs 4 hours ago
Maybe at this point we should just git revert
timwis 2 hours ago
DC did this years ago, too: https://github.com/DCCouncil/law-xml
Someone set it up for Philly and Baltimore too, but I can't seem to find it.
mushufasa 6 hours ago
I'm not an expert in this domain but I'm aware there has been prior work to attempt this. I'd appreciate if someone knowledgeable could post some of that context.
tpmoney 4 hours ago
Something akin to this is a big part of the products that companies like LexisNexis or Thompson Reuters charge your lawyers a whole lot of money for. Because for a lot of legal questions, you don't just need to know what the law says now, but what it said at the time of the incident in question. And every legislative body around the country (at least at the time I was working in this space a decade ago) publishes legislative changes in completely different and often times not easily parsable forms. Web scraping and PDF scraping was far more common than you'd think. Some state legislatures published changes in more reasonable forms, and some states contract their official legislative compilation to companies like LexisNexis or Thompson Reuters and work to publish an actual change stream with proper standardized references. There's a lot of manual work that goes into making stuff like this work, a lot of lawyers and other legal professionals manually reviewing that the right pieces were removed or added in the right places, matching up references to parts of the law that might have changed between the time the legislation was passed and the time the change was published and figuring out what order everything actually goes in. And the actual text of the law is only part of the equation. Legal decisions from courts can dramatically impact the reading of the law, or effect effectively strike laws from the books (even if the laws are technically still on the books, just not enforceable). So often the right way to represent a diff of two points in time depends on the question you're trying to answer.
lazyasciiart 3 hours ago
I wanted to do something like this for a single section in Washington law, to show why a particular funding restriction had been added, but was no longer achieving the intended goal. Git alone wasn't enough of a UI, because the 'why' was only in the introductory text of the bill that changed the law, and not in the law itself - and then there was the move of that article to a different section, and a re-numbering of sections, and a change in definition in a different section that affected the scope of this one... fascinating stuff!
I thought legal document versioning software would cover some of these problems but it doesn't seem like a similar enough process.
tpmoney 3 hours ago
tdhz77 5 hours ago
You are correct the library of congress and the gpo do this.
zoobab 2 hours ago
I proposed Git and Markdown instead of XML for EU law making in the European Parliament, they went with their own custom web editor to manupilate XML. And failed.
nico 4 hours ago
I love this, and I feel every legal document (of which there are many, for example, a random one: insurance companies' policies) should have something like this (and no, Word is not good for it)
Does it already exist?
xlayn 5 hours ago
YES PLEASE, but I suspect it will degenerate into another paid service with 1000 tiers... I think you cannot access the US law without paying for it? odd... I will wait for claude law to appear and hope they share the torrent...
Matticus_Rex 5 hours ago
Legislation you can generally access for free. Case law you often cannot.
macintux 5 hours ago
Electrical & building codes are also paywalled, IIRC.
kooi 5 hours ago
iAMkenough 5 hours ago
Should that change? In my opinion, in the age of AI, both should be generally accessible for free.
deathanatos 4 hours ago
autoexec 2 hours ago
7kago_yomi 5 hours ago
Unlike code, natural language laws have many exceptions and context dependencies, so trying to manage them cleanly with Git seems like it would be tough as data structuring costs and exception handling (hardcode-style responses) increase.
deathanatos 4 hours ago
> Unlike code, natural language laws have many exceptions and context dependencies,
In the interpretation of the law, yes, but that doesn't matter for version controlling the text of the law, and in that sense, you can absolutely manage the text pretty cleanly in git. Most laws are just text. Many bills are literal git-diffs, except in prose, which can make it hard to understand a bill.
> exception handling (hardcode-style responses)
This is basically non-sequitur (there no such thing as a "hardcode-style response" in git…), and again, I think you're misunderstanding the idea here.
JumpCrisscross 5 hours ago
> natural language laws have many exceptions and context dependencies
The complexity is in common law, not natural-language laws.
The U.S. Code and Code of Federal Regulations can be completely presented through a Git-like system. The complexity comes in when attaching court cases.
jcranmer 5 hours ago
Nah, it's pretty damn common in any legal system.
If you've got a statute like "no vehicles in the park," the fundamental issue is that you have to interpret "what is meant by 'vehicle'?" and no legal drafting is going to be good enough to actually cover all the possible cases well enough. The main difference between a common law and a civil law system here is that in a common law system, you have to cite the previous similar cases (because precedent is binding) whereas in a civil law system, you're merely using those previous similar cases as persuasive evidence. At the end of the day, it boils down to arguing for your interpretation.
And in my experience working on language standardization (which is closer to a civil law system than a common law system), it's fairly often that I have to resort to looking up not just when a change in the text occurred, but dive deep into the discussions of the paper proposing the change to understand what the committee thought it was doing with the change. The complexity of law is fairly similar--the changes to the law themselves often require understanding the legislative and interpretative history of the law to understand what the intent of the drafter was to be able to rule on how the law is extended to an unanticipated scenario.
thenewnewguy 4 hours ago
7kago_yomi 5 hours ago
I see. The laws are completely different from my country, so this is very educational. My country uses civil law, but I see that is how it is under common law. Thank you very much.
beau_g 3 hours ago
This brings us to my even more unlikely idea - when whoever wrote that line in the legislation dies or retires, the line enters a short review period where it's either renewed with a new author on the line to speak to it or is deprecated. This way someone would always be there to just answer for the intent. Also would help garbage collect legislation that is no longer useful.
autoexec 3 hours ago
> when whoever wrote that line in the legislation dies or retires, the line enters a short review period where it's either renewed with a new author on the line to speak to it or is deprecated.
That seems like a great way to turn functional legislation into swiss cheese as one line at a time things are either kept or removed based on chance/circumstance and the whims of the current people in power.
Laws are collectively voted for as a complete package, and a law that worked and was passed as being acceptable can become useless, dangerous, and undesirable with a very small number of lines removed from them. I want lawmakers to spend their time focused on the entirety of a bill. Your idea would result in them fighting over who should or shouldn't be recorded as the official author of each and every line. We don't need nonsense like "Senator X will retire soon so Senator Y should author it!", or "I'll agree to author line 405 if you agree to author line 30!"
Your idea, like so many ideas where laws just fade away unless something happens to keep them, also sounds like a great way for you to lose longstanding freedoms and protections that should never be at risk of simply deprecating just because some one gets voted out or dies or retires.
The intent of a law should be clear from the text. It isn't always, but at least now it's possible. To have the intent of a law, or even worse the intent of specific lines within a law, subject to change at any time would make interrupting that law and establishing precedent a nightmare for the courts.
We really should have a system in place to help clear out old and unnecessary laws on the books, but this would be a terrible way to accomplish that.
bad_username 2 hours ago
Law is programs running on humans.
alanwreath 3 hours ago
I wonder if there are any public sources for any of this data at a federal level? And do any of them still hold the older now versions?
omoikane 4 hours ago
See also:
https://news.ycombinator.com/item?id=47625366 - United States Code (federal laws) in Git (2026-04-03, 15 comments)
https://news.ycombinator.com/item?id=47621591 - Every Law a Commit – US Law in GitHub (2026-04-02, 32 comments)
I think it's parsing this data:
https://uscode.house.gov/download.html
Which was discussed here:
https://news.ycombinator.com/item?id=6135504 - The entire US Code is now online in XML (2013-07-31, 237 comments)
adamdennis 4 hours ago
Wasn’t this one of the original pitches for blockchain?
bowmessage 4 hours ago
Not that I've ever heard.
Why would one need a trustless distributed system to store document deltas published by an inherently trusted entity (federal government)?
jcranmer 5 hours ago
I think it's useful to link to a lawyer's take on the utility of a similar tool that was built by somebody else here: https://bsky.app/profile/questauthority.bsky.social/post/3mj...
The tl;dr is that doing git-style change-tracking of the legislation isn't as helpful in practice as you'd think (especially because a lot of the very basic change-tracking is already available in the existing tools that lawyers use!).
AustinDev 3 hours ago
AI explainer videos are actually pretty good. Good usage.
layla5alive 4 hours ago
Being able to git blame politicians and such would be very useful indeed (at first..) :-)
zaik 4 hours ago
Why only at first?
counters 5 hours ago
Major party foul for not calling this "legitslate"
noja 3 hours ago
It’s a nice idea, but isn’t it a bit pointless if the law is not being applied?
yieldcrv 4 hours ago
I put a lot of thought into this last decade, I find that some bills are big blocks of new text, and other bills are convoluted instructions to modify other blocks of existing law, sometimes saying "strike this word and that word" other times referencing just a subsection of another law. hyperlinks to that other law or a model of what the legal code would look like is necessary
Agentically this could be done now, but it would still just be the tip of the iceberg
You're looking at quantum states of law and regulations, and that's just for one jurisdiction
NoMoreNicksLeft 4 hours ago
Without 64-bit time though, can't use it historically. Since current legislation is always changes built upon legislation from long before unix epoch, it kind of falls flat.
nomilk 2 hours ago
Brilliant! Now do it for companies' T&Cs please!
bottled_poe 3 hours ago
> Deepseek, refactor this repo to simplify the code. Make no mistakes.
ericfrederich 3 hours ago
... And the tax code written in Python
octoberfranklin 6 hours ago
Fraudulent title, you can't git-clone this.
edflsafoiewq 5 hours ago
There's actually two kinds of changes here: changes to the law, and changes to your description of the-law-and-its-changes (metachanges). For example, if you make a mistake in recording a change to the law, you need to fix that (unlike eg a source repo where mistakes in a commit message are forever).
So to make this a git repo, I guess you'd make the snapshots be the law plus markup for all the changes, and the diffs are the metachanges. For each snapshot S, you could generate a git repo whose snapshots are the law and the whose diffs are the changes in the law (as described by S). However, this probably isn't the best way to query S.
doezi 5 hours ago
Not really. It is arguing for version controlled legislation. So who’s responsible for what portions of literal laws and policy. I hope your "not clone-able" is in jest
JumpCrisscross 5 hours ago
> who’s responsible for what portions of literal laws and policy
This makes sense for bills. It doesn't for laws. Once a bill is a law, it's the will of the Congress.
dathanb82 5 hours ago
rileymat2 5 hours ago
iAMkenough 5 hours ago
Sounds neat, but not something a private company should be responsible for.
If transparency is the goal, the entire codebase for this should be public domain and not profitable. Otherwise there's a profit motive to rewrite history.
sundayexport 5 hours ago
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