The Postal Service wants employees to remember the differences between Election Mail and Political Mail.
Election Mail refers to mail that allows individuals to participate in the voting process, such as ballots for domestic or international delivery, while Political Mail consists of mailings from registered political candidates, parties and related organizations.
There are different tagging requirements for Election Mail and Political Mail that move through the postal network.
USPS expects to handle more ballots this year than it did during the 2014 midterm election cycle, when more than 20 million ballots were processed.
The Election Mail and Political Mail Blue page has more information.