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| | Postal Service workers |
 | | Deliveries are made house-to-house, to roadside mailboxes, and to large buildings such as offices or apartments, which generally have all of their tenants’ mailboxes in one location. |
 | | After completing their routes, carriers return to the post office with mail gathered from street collection boxes, homes, and businesses and turn in the mail, receipts, and money collected during the day. |
 | | Many sorters, processors, and machine operators work at night or on weekends, because most large post offices process mail around the clock, and the largest volume of mail is sorted during the evening and night shifts. |
| stats.bls.gov /oco/ocos141.htm (2259 words) |
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