Your heart's electrical system controls the timing of your heartbeat by regulating your: 1  Heart rate, which is the number of times your heart beats per minute. 2  Heart rhythm, which is the synchronized pumping action of your four heart chambers.
Get it delivered right to your inbox! Service Computation Date Determination. The service computation date is the date on which you start counting the years of service you need to retire. The date for most employees is the date on which they first enter the service. However, some have been on active duty with the armed forces and may be entitled to service credit for that time.
The date your vesting period begins is determined by your TSP Service Computation Date (TSP-SCD), which your agency reports to the TSP. If you are a FERS participant, your SCD is shown along with the required vesting information on your TSP participant statements. This date should include all Federal civilian service you have performed in the past. The date will never be earlier than January 1, 1984.