# The United States rejoins the Paris Agreement on Biden’s first day

Date: 2021

## The fact

On 20 January 2021 President Biden signed an instrument accepting re-entry into the Paris Agreement and directed State to notify the depositary.

## Context

Trump had withdrawn. Neighbouring EO 14008 is 27 January. He did not rewrite other parties’ NDCs.

The 27 January lease pause is neighbouring. IRA 2022 is a later statute.

The President of the United States signs enrolled bills and is Commander in Chief. He does not write a Senate roll-call, a CBP sector tally, an IDF campaign, or a CBO score. A signature is not unique authorship of every title Congress enrolled. Drafting and floor votes remain with Congress. An archived [White House](/organizations/white-house) (https://bidenwhitehouse.archives.gov/) is the official carrier for this term; current whitehouse.gov is not this administration. Office-holding is not authorship of every later CPI print, encounter table, or foreign campaign.

## Evidence and sources

The White House carries the official instrument or communique. Reuters records the same dated act independently.

## Significance

The path is decarbonisation policy: a completed rejoin restores expected US NDC-and-finance participation, with depositary lag.

## What is established and what is not

Established: 20 January 2021 Paris rejoin directive, independently reported.

Not established: a unique 2021 gigatonne coefficient from inauguration hour, or that other parties’ NDCs changed that afternoon.

What would change the picture: a contradictory original with a different date or name, a later repeal, a court that vacated the instrument, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

State notified the depositary. Other parties still set their own NDCs.. A later repeal, court stay, or successor order would be a different Fact with a different date. That pair identifies The United States rejoins the Paris Agreement on Biden’s first day, not a later speech about The United States rejoins the Paris Agreement on Biden’s first day.

Co-authors and later implementers named in Context remain on the file. The United States rejoins the Paris Agreement on Biden’s first day on 2021-01-20 is not a licence to treat every later The White House communique as this same act. If a later repeal, stay, or successor instrument exists, it needs its own date and its own row. This dossier refuses to average The United States rejoins the Paris Agreement on Biden’s first day into a personality. The contribution described on this Person row is limited to He directed the acceptance. State notified the depositary. Other parties still set their own NDCs. That limit is the alternative to treating office-holding as authorship of every later series.

## People

- Joe Biden: https://factrail.ai/people/joe-biden

## Drivers

- Decarbonization and climate-mitigation policy: https://factrail.ai/drivers/env-decarbonization-policy

## Sources

- https://bidenwhitehouse.archives.gov/briefing-room/statements-releases/2021/01/20/paris-climate-agreement/
- https://www.reuters.com/article/us-usa-biden-climate-paris-idUSKBN29P0N8

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/us-biden-paris-rejoin-2021