In order to take coverage into retirement, the employee must have been covered for the five years preceding (or, if less than five years, since the earliest opportunity to enroll); the rule cannot be waived.<ref>This differs from a similar requirement for continuous coverage of health insurance under the Federal Employees Health Benefit program, which in "exceptional circumstances" allows the five-year rule to be waived.</ref> Also for continuous coverage, the employee must retire on an immediate annuity (if the employee takes a deferred annuity, coverage is suspended -- but not terminated --- from the date of separation until the annuity begins). At retirement, the employee must decide how much coverage to take into retirement (an employee cannot increase coverage in retirement except as noted below): | In order to take coverage into retirement, the employee must have been covered for the five years preceding (or, if less than five years, since the earliest opportunity to enroll); the rule cannot be waived.<ref>This differs from a similar requirement for continuous coverage of health insurance under the Federal Employees Health Benefit program, which in "exceptional circumstances" allows the five-year rule to be waived.</ref> Also for continuous coverage, the employee must retire on an immediate annuity (if the employee takes a deferred annuity, coverage is suspended -- but not terminated --- from the date of separation until the annuity begins). At retirement, the employee must decide how much coverage to take into retirement (an employee cannot increase coverage in retirement except as noted below): |