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The petition argues that the 1993 Recovery Plan's compartmentalized approach of managing grizzly bears in isolated recovery areas is outdated and fails to ensure long-term genetic and demographic resiliency. It proposes a unified metapopulation framework that manages bears as a single interconnected population across the Northern Rockies, requiring the establishment of natural connectivity and the implementation of stricter regulatory mechanisms to reduce human-caused mortality. The petitioners oppose current efforts by Idaho, Montana, and Wyoming to delist grizzly bears, asserting that recovery is premature without a connected metapopulation and durable protections against threats such as habitat fragmentation, climate change, and lethal management policies.

The Yurok Tribe, Port Gamble S’Klallam Tribe, and Puyallup Tribe of Indians petition the EPA under TSCA Section 21 to prohibit 6PPD in tires. They argue that 6PPD transforms into 6PPD-quinone (6PPD-q), a highly toxic chemical responsible for 'urban runoff mortality syndrome' in coho salmon and other salmonids. The petition highlights that 6PPD-q is ubiquitous in urban runoff and sediments, threatening species protected under the Endangered Species Act and undermining Tribal cultural and economic interests. It asserts that the EPA must act because the tire industry has not prioritized alternatives and stormwater treatment is insufficient to remove the toxin.

A coalition of environmental and community groups argues that SSM exemptions in Clean Air Act section 111 regulations are unlawful and disproportionately harm low-income communities and communities of color. The petitioners claim these loopholes allow industrial facilities to emit pollutants far exceeding normal levels without consequence, particularly during natural disasters. They assert that the D.C. Circuit's ruling in Sierra Club v. EPA established that emissions standards must apply continuously, making the current SSM exemptions and the 'general duty' provision legally invalid. The document calls for a unified rulemaking to remove all remaining NSPS and NESHAP loopholes to ensure public health protection and environmental justice.

The petition argues that dams and reservoirs are significant sources of carbon dioxide, methane, and nitrous oxide, yet are currently excluded from the EPA's Greenhouse Gas Reporting Program (GHGRP). It highlights scientific evidence showing that some U.S. facilities, such as Lake Mead and Kentucky Lake, emit millions of metric tons of CO2e annually, sometimes exceeding emissions from fossil-fuel power plants of similar capacity. The petitioners contend that the current lack of reporting leads federal agencies, states, and utilities to incorrectly assume hydropower is a zero-carbon energy source, which may result in ill-informed climate policies and hinder the U.S. from achieving the Global Methane Pledge. The document identifies seventeen distinct emission sources within reservoir systems and urges the EPA to expand the GHGRP to include these facilities to improve data transparency and inform the transition to a truly clean electric sector.

The petition argues that New York City's community gardens provide essential public health, environmental, and social benefits, yet remain vulnerable to development due to a lack of legal protections. It requests the designation of forty specific gardens as Critical Environmental Areas (CEAs) and a broader assessment to grant CEA status to all City-owned gardens. The document details how these spaces mitigate urban heat and flooding, improve food security in 'food deserts', and support mental health and social cohesion, particularly in marginalized Black and Latinx communities.

A coalition of indigenous groups and conservation organizations petitions the U.S. government under the Pelly Amendment to investigate six mining projects in British Columbia (Tulsequah Chief, Red Chris, Schaft Creek, Galore Creek, KSM, and Brucejack). The petitioners argue these mines threaten woodland caribou, grizzly bears, and Pacific salmonids through habitat destruction, toxic pollution, and increased traffic on Highway 37. They specifically highlight the risk of acid mine drainage and tailings dam failures, citing the 2014 Mount Polley disaster. The petition requests a referral to the International Joint Commission to address these transboundary threats to Southeast Alaska's ecosystems and economies.

Earthjustice, on behalf of Sierra Club and ForestEthics, petitions the U.S. Department of Transportation (DOT) to ban legacy DOT-111 tank cars for transporting highly flammable crude oil. The petition argues that these cars pose an "unacceptable public risk" due to high failure rates in derailments, citing disasters in Lac Mégantic, Aliceville, and Casselton. While the DOT has initiated rulemaking and issued operational emergency orders, the petitioners contend these actions are insufficient and too slow to address the imminent hazard. They highlight that Canada has already implemented bans and surcharges on these cars, which may inadvertently push the most dangerous tank cars into the U.S. fleet. The document advocates for an immediate emergency order to bridge the gap until a formal rulemaking process establishes more robust safety standards, such as the CPC-1232 specifications or newer designs.

Earthjustice and a coalition of nonprofit organizations petition the EPA to regulate oil and gas wells as area sources, arguing that the rapid expansion of drilling—particularly via hydraulic fracturing—in metropolitan areas poses a non-negligible risk to public health. The document details the emission of toxic air pollutants such as benzene and formaldehyde, highlights the vulnerability of children and overburdened communities, and identifies significant regulatory gaps in existing EPA rules. It concludes that available technologies, such as green completions and vapor recovery units, can substantially reduce these emissions.

A coalition of environmental and health organizations petitions the U.S. Army Corps of Engineers to move beyond project-specific reviews and undertake a comprehensive area-wide Environmental Impact Statement for proposed coal export terminals in the Pacific Northwest. The petitioners argue that the combined capacity of approximately 100 million metric tons of coal per year creates systemic risks to rail infrastructure, public health, and global climate that cannot be adequately assessed on a site-by-site basis.

The document is a citizen petition submitted to the EPA requesting the promulgation of rules under the Toxic Substances Control Act (TSCA) to address the lack of public and regulatory information regarding chemicals used in oil and gas exploration and production (E&P Chemicals). The petitioners argue that current regulatory gaps—including the 'Halliburton Loophole' and inadequate Material Safety Data Sheets (MSDS)—allow the industry to conceal toxic fluids that pose unreasonable risks to human health and the environment. The petition cites evidence of groundwater contamination, air quality degradation, and animal fatalities across several U.S. states. It specifically requests that the EPA mandate toxicity testing under TSCA section 4, require detailed reporting of chemical identities and volumes under section 8(a), call in records of adverse reactions under section 8(c), and require the submission of all existing health and safety studies under section 8(d).

The petition argues that current EPA regulations for the National Contingency Plan (NCP) Product Schedule are inadequate because they lack safety criteria and permit the withholding of ingredient information as confidential business information (CBI). Using the Deepwater Horizon disaster as a case study, the petitioners claim that the lack of data on chronic sub-lethal impacts, bio-accumulation, and subsea behavior led to environmental unknowns and hindered medical responses. They request that the EPA implement a more robust testing suite—including algal species and various water pressures and temperatures—and make full ingredient disclosure a condition for listing on the schedule.