1. Short title This Act may be cited as the 21st Century American Atomic Energy Age Act . 2. Findings Congress finds the following: (1) The United States should promote and support the development of small modular nuclear reactors to provide safe, reliable, and affordable electricity. (2) The Commission has the responsibility to issue construction permits and operating licenses for innovative nuclear reactors to meet the energy needs of the United States. (3) The United States relied on Russia for about 16 percent of its uranium in 2020. 3. Technical assistance for small modular nuclear reactor applications The Commission shall provide technical assistance to applicants that apply for a construction permit, an operating license, or a combined construction permit and operating license for a small modular nuclear reactor under section 103 or 185 of the Atomic Energy Act of 1954 (42 U.S.C. 2133 or 2235). 4. Prohibition on import and use of nuclear fuel from Russia (a) Prohibition on use (1) In general No person shall use nuclear fuel, including low-enriched uranium, that was produced in, or imported from, Russia to operate any small modular nuclear reactor located in the United States. (2) Rulemaking Not later than 183 days after the date of enactment of this section, the Secretary of Commerce shall establish, by regulation, procedures to ensure compliance with this subsection. (b) Prohibition on imports Section 3112A of the USEC Privatization Act ( 42 U.S.C. 2297h–10a ) is amended by adding at the end the following: (d) Prohibition Beginning on the date that is 90 days after the date of the enactment of this subsection, no low-enriched uranium that is produced in the Russian Federation or by a Russian entity may be imported into the United States. . 5. Report The Secretary of Energy, the Secretary of Homeland Security, and the Secretary of Defense shall, not later than 120 days after the date of enactment of this section, submit to Congress a report that identifies critical infrastructure that can benefit from