What is a common feature of efficient mail processing facilities?

Efficient mail processing facilities incorporate the integration of technology for sorting and tracking mail, which significantly enhances their operational efficiency. This technology allows for automated sorting systems that can rapidly categorize and route mail, reducing the reliance on manual labor and minimizing human error. Additionally, sophisticated tracking systems enable real-time monitoring of mail items, which improves accountability and transparency throughout the processing chain. The use of technology not only accelerates the overall processing time but also improves accuracy, ensuring that mail reaches its intended destination promptly.

In contrast, the other options describe practices that would likely hinder efficiency. Manual sorting can be time-consuming and labor-intensive, limited working hours for staff can constrain the operations, and reliance on only basic equipment can impede the ability to handle large volumes of mail effectively.