5-13.6 Other Topics Considered Section 2-41, Obtain Selected Reviews and Approvals. Section 2-42, Postal Accountability and Enhancement Act Related Reports and Certifications. Section 4-4, Acceptance. Section 5-7, Evaluate Contract Effectiveness. Section 5-9, Share Lessons Learned. Section 5-11, Invoices and Other Billing Information. Section 5-12, Make Payment.