; (B) whether concerns were raised under subparagraph (D) or subparagraph (E) of paragraph (1) and, if so, the concerns raised; and (C) how any such concerns were resolved. (3) Rule of construction Nothing in this subsection may be construed to require the disclosure of classified information, or other information reflecting technical, procedural, or policy concerns that are exempt from disclosure under section 552 of title 5, United States Code. (b) Memorandum (1) Memorandum updates Not later than 3 years after the date of the enactment of this section, and not less frequently than every 4 years thereafter, the Commission and the NTIA shall update the Memorandum. (2) Nature of updates In updating the Memorandum under paragraph (1), the Commission and the NTIA shall ensure that each update reflects changing technological, procedural, and policy circumstances, as determined necessary and appropriate by the Commission and the NTIA. (c) Definitions In this section: (1) Memorandum The term Memorandum means the Memorandum of Understanding between the Commission and the NTIA (relating to increased coordination between Federal spectrum management agencies to promote the efficient use of the radio spectrum in the public interest), signed on August 1, 2022, or any successor memorandum. (2) Spectrum action The term spectrum action means any proposed action by the Commission to reallocate radio frequency spectrum that is anticipated to result in a system of competitive bidding conducted under section 309(j) of the Communications Act of 1934 ( 47 U.S.C. 309(j) ) or licensing that could potentially impact the spectrum operations of a Federal entity. .