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Monarch butterfly

Danaus plexippus · Wherever found · ECOS entity 10710

Federal ESA status Proposed Threatened

The Monarch butterfly is proposed for listing as threatenedthreatened: Likely to become endangered soon.. The listing is not final yet. This is the U.S. federal status. It is not the IUCN Red List or a state list. The latest step was a comment periodcomment period: The weeks when anyone can send the agency their view on a proposal. reopening notice, published on March 19, 2025. No upcoming date is on the record.

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Each step shows up to three dates: the date the law sets, the date in the agency's workplan or set by a court, and the date the step was published. Every date links to the document it comes from.

Timeline for Monarch butterfly
StepStatutory dateWorkplan or court-ordered datePublished (Federal Register)
90-day finding90-day finding: The agency's first answer to a petition, saying whether it is worth a full review.
Statutory date February 16, 2021 (90-day finding, 16 U.S.C. 1533(b)(3)(A)). Federal Register coverage starts October 24, 2024; earlier publications are not on the record yet. 16 U.S.C. 1533(b)(3)(A) Petition linked to this species: inferred from the petition title.
Statute wording for this date: "to the maximum extent practicable". 16 U.S.C. 1533(b)(3)(A)
Not in the workplan Not published as of October 24, 2026
Proposed ruleproposed rule: A draft decision. It is published so anyone can comment before it becomes final. None set Not in the workplan
Proposed rule published in the Federal Register on December 12, 2024. This document is also the proposed critical habitat rule. FR 2024-28855
Comments accepted until March 12, 2025. FR 2024-28855
Final rulefinal rule: The decision that puts a listing or a habitat rule into effect.
Statutory date December 11, 2025 (final rule, 16 U.S.C. 1533(b)(6)(A)). No final rule or withdrawal notice published in the Federal Register as of October 24, 2026. 16 U.S.C. 1533(b)(6)(A)
Not in the workplan Not published as of October 24, 2026
Proposed critical habitat ruleproposed rule: A draft decision. It is published so anyone can comment before it becomes final. None set Not in the workplan
Proposed critical habitat rule published in the Federal Register on December 12, 2024. This document is also the proposed rule. FR 2024-28855
Final critical habitatcritical habitat: Places the agency marks as needed for the species to recover. rule
Statutory date December 11, 2025 (critical habitat with listing, 16 U.S.C. 1533(a)(3)(A)(i), (b)(6)(C)). No final critical habitat rule published in the Federal Register as of October 24, 2026. 16 U.S.C. 1533(a)(3)(A)(i), (b)(6)(C)
Statute wording for this date: "to the maximum extent prudent and determinable". 16 U.S.C. 1533(a)(3)(A)(i), (b)(6)(C)
Not in the workplan Not published as of October 24, 2026
Comment periodcomment period: The weeks when anyone can send the agency their view on a proposal. reopening notice None set Not in the workplan
Comment period reopening notice published in the Federal Register on March 19, 2025. FR 2025-04443
Comments accepted until May 19, 2025. FR 2025-04443

Petitions

  • “Petition for ██████████ for a Section 4(d) Rule for the Monarch Butterfly”: petition date (active). Source: ECOS petitions report, ECOS species profile. Petition linked to this species: inferred from the petition title.

Identifiers and sources

This record
https://conservanode.org/id/species/10710
ECOS
Species profile 9743
Federal Register
Regulations.gov