Health Care Assurance for Retired Employees Act of 1997

Health Care Assurance for Retired Employees Act of 1997 - Amends the Employee Retirement Income Security Act of 1974 to require advance notice to participants and the Secretary of Labor of material reductions in group health plan covered services. Prohibits any such change from taking effect until the Secretary determines that it does not violate the plan, including collective bargaining agreements. Amends the Internal Revenue Code to require qualified pension plans to provide qualifying persons 55 years of age or older a coverage continuation option until they are eligible for Medicare. Amends title XVIII (Medicare) of the Social Security Act to provide retired workers who lose their retiree health benefits with specified Medicare enrollment and coverage protections.