Handbook EL-312 - Employment and Placement - Contents 55 Eligibility to Work in the Postal Service 551 Determining Eligibility at the Screening Stage To be eligible for career or noncareer Postal Service em..." /> Handbook EL-312 - Employment and Placement - Contents 55 Eligibility to Work in the Postal Service 551 Determining Eligibility at the Screening Stage To be eligible for career or noncareer Postal Service em..." />