Public Notice Federal Communications Commission 45 L Street NE Washington, D.C. 20554 News Media Information 202 / 418-0500 Internet: https://www.fcc.gov TTY: 1-888-835-5322 Report No. 3220 April 17, 2026 OFFICE OF THE SECRETARY REFERENCE INFORMATION CENTER PETITION FOR RULE MAKING FILED Interested parties may file statements opposing or supporting the Petition for Rulemaking listed herein within 30 days, or as noted. See Sections 1.4 and 1.405 of the Commission's rules for further information. RM-NO. RULES SEC. PETITIONER DATE RECEIVED NATURE OF PETITION RM-12021 47 C.F.R. § 1.401 Teradar Inc. (Matthew Carey 88 Black Falcon Ave Suite 188 Boston MA 02210) 4/10/2026 Petition for Rulemaking to Amend Part 15 Of the Commission’s Rules to Authorize Terahertz Imaging Devices in the 300-320 GHz Band FCC