<blockquote class="spPostEmbedQuote"><strong>Jarod1231 said </strong>
Whoever told you this is either lying or doesn't know what they are talking about. <strong>The only time</strong> seniority carries during a transfer is if the entire office is merged. </blockquote>
Almost.
30.2.F.2. When a regular rural route is transferred from one office to another, the substitute, rural carrier associate, or rural carrier relief employee designated to serve the route being transferred shall be privileged to transfer with the route to the new office. If the employee transfers with the route, the transferring employee retains seniority gained at the original office, and the employee’s seniority is merged with the seniority of all substitutes, rural carrier associates, and rural carrier relief employees assigned to the same finance number in the new office.