No. Warehouse experience helps, but it is not required. Candidates with backgrounds in retail stocking, manufacturing, construction labor, delivery support, or other physically demanding work can still position themselves strongly by emphasizing reliability, stamina, safety awareness, and schedule flexibility.

Yes. USPS operations frequently require overtime, weekend shifts, holiday schedules, and peak-season staffing flexibility. Candidates who clearly communicate availability often appear more operationally prepared during screening.

A strong USPS cover letter is usually between 250 and 400 words. Hiring managers prefer concise, operationally focused letters that quickly demonstrate reliability, physical capability, and work readiness.

The most valuable skills include package handling, loading and unloading, sorting accuracy, safety compliance, teamwork, attendance reliability, physical stamina, and flexibility for demanding schedules.

You can use the same core structure, but tailoring improves results. Processing plant applications should emphasize sorting accuracy, mail flow, and operational consistency, while distribution center applications should focus more on parcel handling, dock operations, freight movement, and logistics support.