Mail stuck in Missouri City? Here’s why

The postal service said it's undergoing a network modernization plan in an attempt to update its "outmoded" system. The plan includes establishing Regional Processing and Distribution Centers (RPDC) and Local Processing Centers (LPC). In Houston’s case, an existing processing center on the city’s north side was recently transformed into an RPDC, and an LPC was created in Missouri City. The transition to this new system is what caused “some unintended and temporary” disruptions, according to the USPS statement.