Local Activists for a Nuclear-Free Future
Legal Intervenors in Diablo Safety Issues since 1973
San Luis Obispo Mothers for Peace is a non-profit organization concerned with the dangers posed by Diablo Canyon and other nuclear reactors, nuclear weapons, and radioactive waste. Additionally, the organization works to promote peace, environmental and social justice, and renewable energy.

Radioactive Waste
Safe storage of high level radioactive waste is the Achilles’ heel of the nuclear industry. The waste must be stored and isolated from the environment for a million years.
After decades of failed policy, there exists no environmentally safe, just, and equitable solution to the storage of high level radioactive waste.
DECOMMISSIONINg or extended operation?
Diablo Canyon nuclear plant was scheduled to retire in 2024 and 2025 through a 2016 joint agreement between its owner, Pacific Gas and Electric Company (PG&E), labor, consumer advocacy and environmental groups. However, over the last year, there has been a push to extend operations beyond these shutdown dates based on Governor Newsom’s claim that its energy is needed.
Climate and Energy
San Luis Obispo Mothers for Peace (MFP) recognizes the threat to all life forms on the planet posed by the increase in carbon dioxide. Human activities, especially since the industrial revolution, have caused this climate change. MFP works in conjunction with like-minded organizations to preserve a livable world for future generations.

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Latest News
June 10-11, 2025: Diablo Canyon Independent Safety Committee Meetings
Point San Luis Conference RoomAvila Lighthouse SuitesFirst and San Francisco Streets, Avila Beach You may attend in person or via Zoom. There are multiple opportunities for public comment. AGENDA ZOOM LINK Meeting ID: 818 1769 2903 Tuesday morning session, June 10, 9am Agenda highlight: update on the removal of reactor embrittlement specimen capsule B during…
Read More June 10-11, 2025: Diablo Canyon Independent Safety Committee Meetings
May 15, 2025: Top Seismologist Urges Immediate Shutdown of Diablo Canyon Nuclear Reactor Citing “Unacceptable Risk” of an Earthquake-Triggered Meltdown
Award-Winning UCLA Earthquake Scientist Files Declaration to the NRC Requesting Shutdown of Diablo Canyon. SAN LUIS OBISPO, CA – MAY 15, 2025 – A leading earthquake expert has called for the immediate shutdown of California’s last operating nuclear power plant, warning that a proposed decision by the NRC dismissing seismic risks at Diablo Canyon is…
April 26, 2025: Join Mothers for Peace at SLO EarthFest
Join us at Meadow Park! 11am – 5pm!
Read More April 26, 2025: Join Mothers for Peace at SLO EarthFest