Follow the steps to complete the PS Form 8161 accurately.

1. Click the ‘Get Form’ button to obtain the form and open it in your preferred editor.
2. In the first section, enter the name of the authorized MMS mailer in the designated field.
3. Provide the sample date in the appropriate field to indicate when the sampling was conducted.
4. Fill out the manifest sequence number, which is essential for tracking your mailing.
5. Indicate the destination entry rate claimed, selecting from BMC, DDU, SCF, or None.
6. Choose the presort rate level selected, either Presorted or Carrier Route.
7. Calculate the total manifest piece rate postage and enter it in the correct section.
8. Complete the total manifest pound rate and ensure it is accurate.
9. If required, complete the sampling worksheet on the reverse side for the selected samples.
10. Perform piece rate postage calculations by entering the number of samples and multiplying by the corresponding rate.
11. Enter the actual sample piece rate postage and calculate the postage adjustment factor.
12. Repeat the process for pound rate calculations, noting the actual weight versus the manifest weight.
13. Assess whether the postage adjustment factors meet the specified conditions to determine if you need to adjust the postage.
14. Complete the final calculations for corrected postage payments, ensuring all entries are accurate.
15. Sign the form in the designated area and include the round stamp if necessary.
16. Review all entries for accuracy before proceeding to save changes, download, print, or share the completed form.

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