Agencies were to implement the new policies for the SES appraisal cycles that began in 2001.
By 2001, departments were required to use the new rules for the SES appraisal cycles.
mnli hypothesis: By 2001, departments were required to use the new rules for the SES appraisal cycles. premise: Agencies were to implement the new policies for the SES appraisal cycles that began in 2001.