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Council of Radiation Protection Scientific Committee No. 66 devoted to establishing guidelines for the safe use of ultra- sound in medicine. Three volumes were published by that committee: 1) Biological Effects of Ultrasound: Mechanisms and Clinical Implications, in 1983; 2) Exposure Criteria for Medical Diagnostic Ultrasound: I. Criteria Based on Thermal Mechanisms, in 1992, and 3) Exposure Criteria for Medical Diagnostic Ultrasound: II. Criteria Based on All Known Mechanisms, in 2002. These volumes are considered the most authoritative documents in this field. Douglas L. Miller, PhD University of Michigan Ann Arbor, MI 48109 ASA has learned of the deaths of the following members: P. E. Doak Ronald L. McKay Paul B. Oncley Stannard M. Potter Bertram Scharf Maurice Sevik Edgar M. Villchur Jason T. (Tic) Weissenburger Statement of Ownership, Management and Circulation 1. Publication title: ACOUSTICS TODAY 2. Publication number: ISSN1557-0215 3. Filing Date: 1 October 2011 4. Issue frequency: Quarterly 5. No. of issues published annually: 4 6. Annual subscription price: $5 7. Complete mailing address of known office of publication: 2 Huntington Quadrangle, Suite 1NO1, Melville, NY 11747-4502 8. Complete mailing address of headquarters or general business offices of the publisher: 2 Huntington Quadrangle, Suite 1NO1, Melville, NY 11747-4502 9. Full names and complete mailing addresses of publisher, editor and managing editor: Publisher: Acoustical Society of America, 2 Huntington Quadrangle, Suite 1NO1, Melville, NY 11747-4502 Editor: Richard Stern, Acoustical Society of America, Suite 1NO1, 2 Huntington Quadrangle, Melville, NY 11747-4502 Managing editor: none 10. Owner (if the publication is owned by a corporation, give the name and address of the corporation immediately followed by the names and addresses of all stockholders owning or holding 1 percent or more of the total amount of stock. If not owned by a corporation, give the names and addresses of the individual owners. If owned by a Partnership or other unincorporated firm, give its name and address as well as those of each individual owner. If the publication is pub- lished by a nonprofit organization, give its name and address: Acoustical Society of America, Suite 1NO1, 2 Huntington Quadrangle, Melville, NY 11747-4502 11. Known bondholders, mortgagees and other security holders owning or holding 1 per cent or more of total amount of bonds, mortgages or other securities: None 12. The purpose, function and nonprofit status of this organization and the exempt status for Federal income tax purposes: The purpose, function, and nonprofit status of this organization and the exempt status for federal income tax purposes has not changed during pre- ceding 12 months. 13. Publication name: ACOUSTICS TODAY 14. Issue date for circulation data below: April 2011 15. Extent and nature of circulation: A. Total number of copies (net press run) Average 9,032 April 9,558 B. Paid Circulation(By mail and Outside the Mail) 1. Subscriptions Stated on PS Form 3541 Average 8,583 April 9,088 2. Mailed In-County Paid Subscriptions Average 0 April 0 3. Paid Distribution Outside the Mails Average 0 April 0 4. Paid Distribution by Other Classes of Mail Through the USPS Average 8,583 April 9,088 C. Total Paid Distribution (Sum of 15b. 1-4) Average 8,583 April 9,088 D. Free or Nominal Rate Distribution (by Mail and Outside the Mail) 1. Free or Nominal Rate Outside-County Copies included on PS Form 3541 Average 30 April 31 2. Free or Nominal Rate In-County Copies Included on PS Form 3541 Average 0 April 0 3. Free or Nominal Rate Copies Mailed at Other Classes Through the USPS Average 0 April 0 4. Free or Nominal Rate Distribution Outside the Mail Average 0 April 0 E. Total Free or Nominal Rate Distribution Average 30 April F. Total Distribution Average 8,613 April G. Copies Not Distributed Average 419 April I. Total Average 9,032 April J. Percent paid Average 99.65% April 31 9,119 439 9,558 99.66% I certify that all information furnished above is true and complete. Dick Stern, Editor 56 Acoustics Today, October 2011