Here are forms for postal related operations.
3996 Carrier Auxiliary Control - Reasons
4056 Your Mailbox Needs Attention
Notice 38 Approaches to Curbside Mailboxes
1187 Request for Payroll Deductions for Labor Organization Dues
1216 Employee Change of Address
2574 Resignation/Transfer from the Postal Service
8190 USPS-NALC Joint Step A Grievance Form
1717 Bid for Preferred Assignment
1717a Preferred Assignment Multiple Bid Card
2146 Exployee's Claim for Personal Property
3971 Request for or Notification of Absence
3189 Request for Temporary Schedule Change for Personal Convenience
1767 Report of Hazard, Unsafe Condition of Practice
CA-1 Federal Employee's Notice of Traumatic Injury and Claim for Continuation of Pay/Compensation
CA-2 Notice of Occupational Disease and Claim for Compensation
CA-5 Claim for Compensation by Surviving Spouse and/or Children
CA-5b Claim for Compensation by Parents, Brothers, Sisters, Grandparents, or Grandchildren
CA-6 Official Superior's Report of Employee's Death
CA-20 Attending Physician's Report
CA-35 Evidence Required in Support of a Claim for Occupational Disease