Source-backedVariable Custom

National River Cleanup®

American Rivers operates National River Cleanup® as a network of cleanup events held throughout the year; organizers register an event date, so there is no single universal recurring National River Cleanup Day.

Date / ruleYear-round; local cleanup organizers choose and register their own event dates
ScopeUnited States / American Rivers National River Cleanup® program
VerificationOriginal Organizer Variable Schedule Verified
PortabilityVariable Custom
Evidence statusSource-backed
Last authority check2026-09-09
Target-year policyResolve Authority
Next occurrenceNot projected automatically

This record requires a current target-year source or is intentionally historical.

Authority summary

What is National River Cleanup®?

American Rivers operates National River Cleanup® as a network of cleanup events held throughout the year; organizers register an event date, so there is no single universal recurring National River Cleanup Day.

Date and recurrence

Year-round; local cleanup organizers choose and register their own event dates

The date is source-dependent or variable. A target-year source is required before assigning it to a calendar.

Scope and status

The verified scope stored for this record is United States / American Rivers National River Cleanup® program. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.

Also known as

National River Cleanup Day

Classification

Topic and context

Celebrations & Social →
Accuracy controls

What this page does not assume

  • Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
  • Do not treat the title alone as proof of government recognition or public-holiday status.
  • Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
  • Refresh the target year before publishing a new date when the record is not safely portable.
Provenance

Sources

Source policy →
  1. American Rivers — Organize a CleanupOriginal Organizer
  2. American Rivers — National River Cleanup programOriginal Organizer
Reader questions

Frequently asked questions

When is National River Cleanup®?

Year-round; local cleanup organizers choose and register their own event dates The stored recurrence guidance is: Resolve the target event from the American Rivers National River Cleanup® registry; local organizers choose cleanup dates throughout the year.

Does National River Cleanup® fall on the same date every year?

It is not safely predictable from a fixed rule; the target year needs a current source.

Is National River Cleanup® an official public holiday?

The authority record verifies it within this scope: United States / American Rivers National River Cleanup® program. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.

Who established or recognizes National River Cleanup®?

The stored designation basis is: American Rivers operates National River Cleanup® as a network of cleanup events held throughout the year; organizers register an event date, so there is no single universal recurring National River Cleanup Day.. Supporting provenance includes American Rivers — Organize a Cleanup. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is National River Cleanup® international or country-specific?

This authority record is country-scoped to United States. Its fuller verified scope is: United States / American Rivers National River Cleanup® program.

How is this page verified?

The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-09.

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Related records are selected from shared ontology signals. When a reviewed distinction exists, it is labeled separately so “related” is not mistaken for “the same observance.”