Last reviewed: 2026-04-18 by Andy Zhang.
The revised Consumer Confidence Report (CCR) Rule that EPA finalized in May 2024 (Federal Register document 2024-10919, RIN 2040-AG14) is short on sweeping changes and long on specifics. It does not rewrite what community water systems disclose; it rewrites how systems deliver that disclosure, how accessible it must be, and how often larger systems must repeat it. The rule is codified at 40 CFR Part 141 Subpart O, with compliance-date provisions in §141.152 and delivery mechanics in §141.155. For the broader context of what is and is not changing, see the companion overview on the 2027 CCR requirements. This page is the focused summary of the four sub-requirements themselves — what each one actually obligates a utility to do, where the primary-source text lives, and where the implementation pain tends to land.
The four core changes
The revised rule introduces four discrete sub-requirements that sit on top of the existing 40 CFR Part 141 Subpart O framework. In order, they are: (1) a formal direct-link electronic-delivery pathway under §141.155(a); (2) tightened readability and plain-language expectations, including a new §141.156 report summary; (3) biannual report distribution for community water systems serving 10,000 or more people under §141.155(j); and (4) translation and language-access obligations under §141.153(h)(3) keyed to the non-English-speaking composition of the service area.
The final rule was effective June 24, 2024, but the compliance date — when utilities must operate under the revised requirements — is January 1, 2027 per §141.152(a). The first CCR prepared under the revised rule is due to customers by July 1, 2027. The full preamble, response-to-comments, and final rule text are in the Federal Register notice published May 24, 2024 (docket EPA-HQ-OW-2022-0260), and EPA's implementation landing page is at epa.gov/ccr. The four sub-requirements are legally independent — a utility can be in compliance on three and out of compliance on one — so the rest of this page treats each in turn.
Before vs. after the 2027 compliance date
| Requirement | Pre-2027 (original rule) | Beginning January 1, 2027 (revised rule) |
|---|---|---|
| Electronic delivery | Permitted under 2013 EPA guidance; loosely specified | Codified in §141.155(a); must provide a direct link that resolves to the report itself |
| Readability | No standardized summary | Plain-language summary required by §141.156; glossary and prominent violation narrative |
| Delivery frequency (systems serving ≥10,000) | One delivery per year by July 1 | Two deliveries per calendar year; second delivery by December 31 (§141.155(j)(2)) |
| Language access | Primacy-agency-determined language assistance in communities with large LEP populations | Same statutory trigger, but EPA now supplies translated templates and primacy agencies must describe how they will provide translation assistance |
| Compliance monitoring data (States) | No federal requirement to report CMD to EPA | States must submit CMD annually under §142.15(b)(3) |
Requirement #1: Direct-link e-delivery
The revised rule formalizes an electronic-delivery pathway that the 1998 rule did not contemplate and that 2013 EPA guidance only sketched out. Under 40 CFR §141.155(a)(1)(iii), a system may "email a direct link or electronic version of the report" — and that direct link, when opened, must land the customer on the current CCR itself, not a utility homepage, not a customer-portal login screen, not a social-media post linking to the report. The preamble discussion in the Federal Register notice explains why EPA rejected homepage-link and social-media-post alternatives during the comment period.
Three operational consequences fall out of this. First, URL persistence becomes a compliance concern: a link delivered in a billing insert in February must still resolve in October. Second, the utility bears the burden of confirming that the customer actually received the link — a bounced email or an undelivered SMS does not satisfy direct delivery, and most primacy agencies will require a documented second-channel fallback. Third, §141.155(a)(2) requires systems using electronic delivery to provide a paper copy on request and to prominently display directions for requesting one, so e-delivery reduces print volume but does not eliminate the print workflow entirely. Utilities planning to lean heavily on e-delivery should budget for bounce-tracking, URL-archive hosting, and a paper-copy-on-request process before January 2027.
Requirement #2: Readability
EPA declined to adopt a numeric readability threshold (no Flesch-Kincaid target, no mandated grade level) but did tighten the qualitative expectations. The revised rule adds a new §141.156 report summary and, as discussed in the final rule preamble, requires three readability elements to appear in every CCR: a plain-language summary at the front of the report describing overall compliance status (§141.156); inline or glossary definitions of each regulatory term used (MCL, MCLG, action level, treatment technique, parts per million, parts per billion, non-detect); and prominent placement of any violation narrative rather than burial in an appendix or data footnote (§141.153(h)(6)).
The readability requirement is where the bulk of template-rework hours will land. Most utilities inherited a CCR template from a state primary-drinking-water association or from the primacy agency itself, and many of those templates were optimized for 1999 compliance — meaning the data table leads, terminology is undefined, and the customer is implicitly expected to already understand the acronyms. For customer-facing context on what those terms mean in practice, our guide to reading a CCR and the drinking-water standards overview define each term in the plain-language register that the revised rule expects utilities to adopt. Health-effects narrative for specific contaminants — including worked examples for common exceedances — is part of the same readability scope; see, for instance, the contaminant-level context on our lead page.
Requirement #3: Biannual distribution (systems serving 10,000 or more)
Section 2013 of America's Water Infrastructure Act of 2018 amended SDWA section 1414(c)(4) to require biannual CCR distribution for community water systems serving 10,000 or more people, and the revised rule implements that directive at §141.155(j). The first delivery continues to be due by July 1, covering the prior calendar year's monitoring data; the second delivery must be made "by December 31," using the same methods as the July delivery.
The rule contemplates that the second delivery may be narrower in scope than the annual report — the §141.156 summary that accompanies the second delivery must include "a short description of the nature of the 6-month update and the biannual delivery," focused on any new violations, changes in source water, and new sampling results collected between January and June — but it must be a distinct delivery event. Simply reposting the July CCR does not satisfy the requirement. The 10,000-person trigger is measured against service population as reported in the Safe Drinking Water Information System (SDWIS), not connection count. Systems sitting near the threshold should confirm their current SDWIS population figure with the primacy agency well before 2027, particularly if the service area includes seasonal populations (college towns, resort areas, agricultural labor regions), because primacy agencies determine precisely how seasonal residents count toward the threshold. Utilities that have grown through annexation or accelerated subdivision build-out since the last SDWIS refresh are the most common group caught unawares.
Requirement #4: Translation & language access
The revised rule establishes a federal framework for translation and language-access obligations and leaves the numeric threshold to primacy agencies. Under 40 CFR §141.153(h)(3), "in communities with a large proportion of consumers with limited English proficiency, as determined by the Primacy Agency," the CCR must either contain information in the appropriate language(s), tell consumers where to get a translated copy, or be fully translated. The federal rule does not itself set a single percentage or headcount trigger; primacy agencies define "large proportion" in their adopted rule text, and thresholds vary by state.
EPA's Revised CCR Rule Primacy Application Supporting Document (EPA 816-F-25-006, January 13, 2026), linked from epa.gov/ccr, describes the expected primacy-application content: a description of how the State will provide water systems with technical assistance in meeting §141.153(h)(3), resources for translating reports, and recordkeeping of translation plans. EPA has committed to preparing translated templates that include the mandatory health-effects language and standardized statements in multiple languages, which removes the largest block of fresh translation cost for most utilities. The residual translation cost lands on system-specific narrative: the plain-language summary, the source-water description, and any violation discussion. Budget for recurring annual translation work, not a one-time project.
Timeline: January 2027 compliance / July 2027 first report
Five dates anchor the compliance calendar. May 24, 2024 was publication in the Federal Register. June 24, 2024 was the federal effective date of the final rule itself (§141.152(a)), though utilities continue operating under the pre-2027 CCR rule in the interim. Primacy agencies had until approximately May 2026 to submit primacy revision packages to EPA — the submission process is laid out in the Revised CCR Rule Primacy Application Supporting Document (EPA 816-F-25-006, January 2026). January 1, 2027 is the operational compliance date: every community water system must be operating under revised-rule processes from that day forward. July 1, 2027 is the delivery deadline for the first CCR prepared under the revised rule, covering calendar year 2026 monitoring data. For systems serving 10,000 or more, the second 2027 delivery must be made by December 31, 2027.
The intermediate milestone that utilities most often underestimate is the primacy-agency rule-text window. Between May 2026 and January 2027, primacy agencies finalize their adopted text, which may be more stringent than the federal floor, add delivery channels, or tighten the language-access threshold. A utility that designs its revised-rule template against the federal text in mid-2026 and skips the primacy-agency review step in late 2026 risks shipping a non-compliant first CCR in July 2027. Build the primacy-agency check into the template sign-off.
Practical implementation guidance
The four sub-requirements do not have equal operational weight. Direct-URL e-delivery is largely an IT and customer-service workflow: email capture, URL persistence, bounce-tracking, paper-copy fulfillment on request. Readability is largely a template and editorial workflow: plain-language summary, glossary, violation placement, internal review cycle. Biannual distribution is a procurement and scheduling workflow: a second print run or second e-delivery campaign, plus the narrower second-report content. Translation is a vendor and data workflow: ACS analysis, translator contracts, regeneration cadence.
Sequence matters. Start with readability because the revised template is the substrate on which the other three requirements ride. A template whose plain-language summary and glossary are finalized by Q3 2026 becomes easy to translate in Q4 2026 and easy to republish for a biannual delivery in Q3 2027. A template that is still in revision in Q1 2027 creates cascading cost: every round of edits multiplies the translator invoice and the distribution-list verification work. Utilities with limited staff capacity should also confirm eligibility for Drinking Water State Revolving Fund (DWSRF) technical assistance — the 2021 Bipartisan Infrastructure Law expanded DWSRF set-asides for small-system compliance support, and several states offer certified revised-rule templates that small and medium systems can adopt directly without a full in-house redesign.
FAQ
Which regulatory text contains the four sub-requirements?
The final rule text lives in 40 CFR Part 141 Subpart O, as amended by the Federal Register notice published May 24, 2024 (document 2024-10919, docket EPA-HQ-OW-2022-0260, RIN 2040-AG14). The preamble to that notice is the most useful reading for interpretation questions, and EPA's January 2026 Revised CCR Rule Primacy Application Supporting Document (EPA 816-F-25-006) — linked from epa.gov/ccr — adds the implementation detail.
If my utility already does e-delivery, do I need to change anything?
Likely yes. E-delivery under 2013 EPA guidance was loosely specified, and many utilities deliver via homepage link, customer-portal login, or social-media post. Under the revised §141.155(a), the direct link in an email must land the customer on the current CCR itself. Review your current e-delivery link flow and confirm it lands on the report rather than a navigation surface.
Does the readability requirement apply to the data table itself?
The data table is the compliance backbone and is retained essentially unchanged. Readability applies to the surrounding narrative: the plain-language summary at the front, the definitions of regulatory terms, and the placement of violation discussion. Utilities can and should keep the detected-contaminants table — what changes is what comes before, around, and after it.
Do primacy agencies have to adopt biannual distribution exactly at the 10,000 threshold?
The federal floor is 10,000. A primacy agency may lower the threshold — a few states have historically required biannual distribution for systems as small as 3,300 — but may not raise it. Utilities in states that already have stricter thresholds will not see biannual distribution as a new obligation in 2027; the novelty is the federal floor plus the new direct-URL and readability requirements.
How does the translation requirement interact with federal civil-rights obligations?
Language-access obligations under Title VI of the Civil Rights Act and under EPA's own nondiscrimination regulations already applied to federally funded water systems before the revised CCR rule. The revised rule does not supersede Title VI; it adds a CCR-specific obligation that, in practice, often overlaps with existing Title VI language-access plans. Utilities with a Title VI language-access plan should treat the revised CCR translation requirement as one more delivery channel feeding into that plan rather than as a standalone program.
What happens if the primacy agency's rule text is not final by January 2027?
The federal rule becomes operational on January 1, 2027, regardless of primacy-agency progress. If a primacy agency is late, EPA-region oversight may fill the gap temporarily. The pragmatic course for utilities is to design to the federal floor, watch the primacy-agency rulemaking docket, and hold a final template sign-off until primacy text is published — recognizing that any primacy-agency-specific stringency (lower translation thresholds, additional delivery channels, stricter URL-persistence requirements) can be layered onto a federal-floor template without a full rewrite.
Sources
- U.S. EPA, "National Primary Drinking Water Regulations: Consumer Confidence Reports" — Final Rule, 89 FR 45980, Federal Register document 2024-10919, docket EPA-HQ-OW-2022-0260, RIN 2040-AG14. Published May 24, 2024; effective June 24, 2024; compliance date January 1, 2027. Accessed 2026-04-18.
- Code of Federal Regulations, 40 CFR Part 141 Subpart O — Consumer Confidence Reports (§§ 141.151–141.156). Accessed 2026-04-18.
- U.S. EPA, Safe Drinking Water Act: Consumer Confidence Reports (CCR) landing page. Accessed 2026-04-18.
- U.S. EPA, State Implementation and Primacy Guidance for CCR. Accessed 2026-04-18.
- U.S. EPA, Revised CCR Rule Primacy Application Supporting Document (PDF), EPA 816-F-25-006, January 13, 2026. Accessed 2026-04-18.
- America's Water Infrastructure Act of 2018, Pub. L. 115-270, § 2013 — amending SDWA § 1414(c)(4).