The federal lead pipe rule (LCRI): what changes and when
Updated November 2, 2026
EPA finalized the Lead and Copper Rule Improvements (LCRI) in October 2024. It's the rule behind the letters, the inventories and the push to replace every lead pipe in the country.
Key dates
| Date | What happens |
|---|---|
| October 16, 2024 | Utilities' first service line inventories due (under the earlier 2021 rule). |
| Within 30 days of the inventory, then yearly | Notices to every home with a lead, galvanized-requiring-replacement or unknown line. |
| November 1, 2027 | LCRI compliance begins: replacement programs start, the lead action level drops to 10 ppb, and new sampling rules apply. |
| December 31, 2037 | Most utilities must have replaced every lead and GRR line (10 years, at an average of 10% a year). A few systems with very large numbers may get extended deadlines. |
What the rule requires of utilities
- Replace all lead and galvanized-requiring-replacement service lines, the whole line, including the part the owner controls, with the owner's consent. Partial replacements are no longer allowed except in emergencies.
- Keep the inventory public and resolve "unknown" lines.
- Give residents a pitcher filter and six months of cartridges after replacing or disturbing a lead line.
- Take action, including public education and filters, when lead levels top the 10 ppb action level.
What it doesn't do
The federal rule does not say who pays for the private side. That's left to states and utilities, which is why programs range from completely free to owner-pays. Federal money helps: the 2021 infrastructure law provided $15 billion for lead line replacement, and many states pass it to utilities as grants or forgivable loans that can cover the private side.
The court challenge
The American Water Works Association sued to overturn parts of the rule (American Water Works Association v. EPA, No. 24-1376), arguing the 10-year deadline is infeasible and that utilities shouldn't have to replace privately owned pipe. The D.C. Circuit heard arguments on September 30, 2026, with judges focused on how much "control" utilities have over private lines. No decision had been issued as of mid-October 2026, and the rule remains in effect. A ruling could keep it, narrow the private-side requirement, or send it back to EPA.
What it means for you
If you have a lead line, your utility must replace it by 2037, and it can't replace only its own half. Whether you pay depends on your state and utility. If you'd rather not wait, ask whether the utility will coordinate with a plumber you hire.
Sources: EPA LCRI, EPA LCRI fact sheet, AMWA, Bloomberg Law
Common questions
When do all lead pipes have to be replaced?
Most utilities must replace all lead and galvanized-requiring-replacement service lines within 10 years of November 1, 2027, so by the end of 2037.
Does the federal rule make the utility pay for my side?
No. It requires full replacement but leaves the cost split to states and utilities. Many use federal grants to cover the private side.
Find your city's program
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