CHD Seeks Court Order Against FCC RF Delay

Children’s Health Defense (CHD) and Environmental Health Trust have returned to federal court, asking judges to force the Federal Communications Commission (FCC) to revisit radiofrequency (RF) radiation exposure limits that critics say are outdated and no longer reflect modern wireless use.

In a Petition for Writ of Mandamus filed May 18 in the U.S. Court of Appeals for the District of Columbia Circuit, the groups argued the FCC has failed for more than four years to comply with a 2021 court mandate ordering the agency to better explain why it kept its 1996 RF exposure guidelines in place.

The filing stems from the 2021 case Environmental Health Trust v. FCC, in which the D.C. Circuit ruled the FCC acted in an “arbitrary and capricious” manner when it dismissed evidence tied to possible non-cancer health effects and environmental concerns linked to RF radiation exposure.

According to the new petition, the court previously ordered the FCC to address “the impacts of RF radiation on children, the health implications of long-term exposure to RF radiation, the ubiquity of wireless devices, and other technological developments that have occurred since the Commission last updated its guidelines.”

The petitioners claim the FCC has instead continued to support rapid wireless expansion while leaving decades-old standards untouched.

“Wireless facilities and devices have continued to massively proliferate,” the filing states. “RF radiation exposure has skyrocketed and evidence of harms from RF radiation—especially from pulsed or modulated signals—has continued to accumulate since the Court issued the mandate.”

The groups are asking the court to order the FCC to issue a formal response within 90 days.

The petition was filed by Children’s Health Defense, Environmental Health Trust, and several individual petitioners who allege health problems connected to RF exposure. The filing describes symptoms including fatigue, headaches, insomnia, memory loss, blurred vision, and cardiac issues.

Attorneys for the groups argued that the FCC’s existing rules were built largely around preventing tissue heating from radiation exposure, while failing to address possible “non-thermal” biological effects.

The petition also points to growing wireless use since the FCC adopted its current limits in 1996. According to the filing, the United States had roughly 24,800 cell towers in 1996. By 2025, the number had grown to more than 254,000 macro cell sites, along with hundreds of thousands of smaller wireless nodes.

The filing further cites increased screen time and wireless device use among children and teenagers, arguing that today’s exposure patterns differ sharply from those considered when the original standards were written.

As part of their argument, petitioners included an addendum summarizing recent RF research published between 2019 and 2026. The review references studies involving oxidative stress, reproductive impacts, neurological concerns, wildlife disruption, and ecological effects, while also noting that some studies found no measurable adverse effects under certain test conditions.

Among the studies cited were reviews examining possible impacts on sperm quality, oxidative stress pathways, and environmental effects on birds, insects, pollinators, and other wildlife species.

The petition argues that the FCC has continued advancing wireless deployment policies while avoiding the broader health review ordered by the court.

“The Commission has a ‘crystal-clear legal duty’ to act,” the petition states, citing prior D.C. Circuit precedent.

The FCC had not publicly responded to the filing as of Tuesday evening.

The CHD et al. Petition for Writ of Mandamus, filed May 18, 2026 and the “Health and Environmental Impacts of RF Radiation (2019–2026)” addendum are below: