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a. This Advisory Circular (AC) publishes needed changes to the existing AC material as a result of additions of certificated aircraft noise levels submitted since the AC was published. b. This change revises Appendix 1, U.S Certificated Turbojet Powered Airplanes and Appendix 8, U.S. Certificated Propeller Driven Small Airplanes (14 CFR Part 16, Appendix G), and Appendix 8 Notes. c. The change number and the date of the changed material are shown at the top of each page in Appendix 1, Appendix 8, and Appendix 8 Notes.. 2. Principal Changes. Appendix 1, Appendix 8, and Appendix 8 Notes. 3. Website Availability. To access this AC electronically, go to http://www.faa.gov/regulations_policies/advisory_circulars/

This document is available to the U.S. public through the National Technical Information Service (NTIS), Springfield, Virginia 22161. This document is also available from the Federal Aviation Administration William J. Hughes Technical Center at actlibrary.tc.faa.gov U.S. Department of Transportation Federal Aviation Administration

78448 Federal Register / Vol. 88, No. 219 / Wednesday, November 15, 2023 / Notices the individual registers for a credential. We ask for the User ID (username and password) every time an individual signs in to our automated services. If individuals opt for the enhanced or upgraded account, they also either receive an email message or a text message on their cell phones (this serves as the second factor for authentication) each time they sign in. The respondents are individuals who choose to use the internet or Automated Telephone Response System to conduct business with SSA. Type of Request: Revision of an OMB- approved information collection. Modality of completion Number of re- spondents Frequency of response Average burden per response (minutes) Estimated total annual burden (hours) Average theoretical hourly cost amount (dollars) * Average wait time in field office (minutes) ** Total annual opportunity cost (dollars) *** Internet Registrations .............................. 11,788,914 1 8 1,571,855 * $29.76 ........................ $46,778,405 Internet Sign-Ins ...................................... 124,989,089 1 1 2,083,151 * 29.76 ........................ *** 6,194,574 Intranet Registration (RCS) ..................... 54,908 1 8 7,321 * 29.76 ** 24 *** 871,492 Totals ............................................... 136,832,911 ........................ ........................ 3,662,327 ........................ ........................ *** 53,844,471 * We based this figure on average U.S. citizen’s hourly salary, as reported by Bureau of Labor Statistics data (https://www.bls.gov/oes/current/oes_nat.htm#00- 0000). ** We based these figures on the average FY 2022 wait times for field offices, based on SSA’s current management information data. *** This figure does not represent actual costs that SSA is imposing…