On what day of the month does the rental service for PO boxes typically begin?

The rental service for PO boxes typically begins on the 1st of the month. This is because the USPS standardizes the rental periods to align with calendar months, making it simpler for customers to remember when to start their payments and when their rental terms commence. Starting on the 1st allows for a consistent billing cycle, which aids in organization both for the postal service and for the customers managing their postal needs. The other choices do not align with this established practice, which is why they are not applicable for the start date of PO box rentals.