This document presents witness testimonies and prepared statements from the Congressional hearing called to examine the removal of the mandatory retirement age by taking the cap off of employees in the private sector through the passage of H.R. 4154. Opening statements are included from Congressmen Pepper and Martinez. Arthur Flemming, the Chairman of the Citizens Coalition for Civil Rights, testifies in support of H.R. 4154. T. Franklin Williams, the director of the National Institute on Aging, discusses the medical and scientific evidence relative to the issue of mandatory retirement, cites examples of how functioning in the various organ systems can be maintained at high levels into an individual's later years, and concludes that there is no convincing medical evidence to support a specific age for mandatory retirement. Eugene Silbermann, a physician, and Erling Johnson, representing the American Association of Retired Persons, discuss their personal experiences with mandatory retirement. Joseph Quinn, an economics professor at Boston College, bases his testimony on 5 years of economic research on the determinants of individual retirement and, while supporting H.R. 4154, asserts that removing mandatory retirement laws without changing the financial incentives that exist in Social Security and private pension plans will have only a modest impact on overall retirement patterns. Prepared statements, letters, and supplemental materials are included. (NB)