See How Courts Interpret Every Amendment
Search the US Code, CFR, and state statutes with full amendment history. For every amended section, Vaquill AI searches millions of US federal and state court opinions to show you how judges interpreted the law before and after the change, so you know which precedents still apply.
What You Get
Full amendment timeline
See every change to every section, substitutions, insertions, and omissions, with the exact amending act, date, and legislative reference.
Court Interpretations (before vs after)
For each amended section, see how federal and state court judges interpreted the provision before the amendment and after the change took effect. Know instantly whether pre-amendment precedents still hold.
Semantic case matching, not keyword search
The system understands the legal concept in each section and finds cases discussing the same concept. It requires explicit section + act references, prioritizes interpretive holdings over passing citations, and ranks higher court opinions higher.
Cached for instant access
The first Court Interpretations search for a section takes 2-3 seconds. After that, results are saved permanently and load instantly for all users.
How Statutes & Regulations Works in Vaquill AI
How Court Interpretations work
When you click "Court Interpretations" on any amended section, Vaquill AI runs an AI-powered search across millions of US federal and state court opinions. It finds cases where judges actually discussed and interpreted that specific section, not just cases that mention it in passing.
- ✓Understands the legal concept in the section text and finds cases discussing the same concept
- ✓Requires the case to reference both the section number AND the act name
- ✓Prioritizes cases with interpretive language ("held that", "the court observed", "scope of Section")
- ✓Ranks SCOTUS and circuit court opinions higher than district court ones
- ✓Shows the exact paragraph where the court discussed the section
Before vs After amendment split
Results are split into two columns based on the amendment date. This answers the critical question every lawyer has: did the amendment change the legal position, or did courts interpret the new provision the same way?
- ✓Pre-amendment cases: how courts interpreted the original section text
- ✓Post-amendment cases: how courts interpreted the amended section text
- ✓Instantly see whether the amendment changed judicial interpretation
- ✓Know which old precedents are still good law and which are outdated
Amendment tracking
Every section change is tracked with full provenance, which amending act made the change, when it took effect, and what exactly changed.
- ✓Substitutions: old text replaced with new text
- ✓Insertions: new sections, sub-sections, or provisos added
- ✓Omissions: sections removed from the act
- ✓Amending act reference with date and legislative history
How It Works
Get started in minutes, not weeks.
Search for a statute
Search across federal and state statutes by name, keyword, category, or agency. Filter by jurisdiction, legal subject, or year.
Open the Amendments tab
See a timeline of every amendment to the statute, which sections were changed, what was substituted or omitted, and by which amending act.
Click Court Interpretations
For any amended section, click "Court Interpretations" to search millions of US federal and state court opinions. Vaquill AI finds cases where courts discussed and interpreted that specific section.
Compare before vs after
Results are split by amendment date. See how courts interpreted the section before the change and after, instantly know which precedents still apply.
Frequently Asked Questions
What statutes does Vaquill AI cover?
Vaquill AI indexes federal and state statutes, regulations, and codes. This includes major legislation like USC Title 18, FRCP, Securities Exchange Act, FOIA, CCPA, and more. New statutes and amendments are added as they are published.
How does Court Interpretations differ from a regular case search?
A regular case search finds every case mentioning a section, which can return thousands of irrelevant results. Court Interpretations uses AI to find only cases where judges actually discussed and interpreted the legal concept in that section. It requires both the section number and act name, prioritizes interpretive language, and ranks higher court holdings above passing references.
What does the before/after split show?
When a section is amended, the legal position may change. The before/after split shows you cases that interpreted the original section text (pre-amendment) and cases that interpreted the new text (post-amendment). This tells you whether old precedents are still applicable or whether the amendment changed how courts view the provision.
How fast are the Court Interpretations results?
The first time anyone searches Court Interpretations for a specific section, it takes 2-3 seconds to search millions of US federal and state court opinions. After that, results are cached permanently and load instantly for all users.
What types of amendments are tracked?
Three types: substitutions (old text replaced with new text), insertions (new sections or provisos added), and omissions (sections removed). Each amendment includes the amending act name, date, and legislative history reference.
Can I use this for state statutes as well?
Yes. Vaquill AI covers both federal and state statutes. You can filter by jurisdiction, legal subject, category, or agency to find the specific legislation you need.
Stop Guessing Which Precedents Still Apply
See how courts interpreted every amendment, before and after. Search statutes with Court Interpretations across millions of US federal and state court opinions.