Prince Harry and Meghan Markle’s foundation is encouraging Americans to get out and vote in the upcoming US presidential election.

In honor of National Voter Registration Day on Tuesday, employees at the couple’s Archewell Foundation wrote personalized letters to “support and empower” unregistered voters.

“Voting is not just a right; it’s a fundamental way to influence the fate of our communities,” a statement shared on their website read.

“At The Archewell Foundation, we recognize that civic engagement, no matter one’s political party, is at the heart of a more just and equitable world,” it continued. “By participating in initiatives like this, we aim to amplify the message that every voice matters.”

The foundation used Vote Forward’s letter-writing tool for guidance and invited others to “join [them] in this important effort.”

“Together, let’s make sure every eligible voter is informed and empowered to participate in shaping America’s future,” the statement concluded.

Archewell also shared several photos of their volunteers hard at work. However, the Duke and Duchess of Sussex were not photographed.

This isn’t the first time the couple has spoken about the importance of voting. Ahead of the 2020 election, Harry, 40, and Markle, 43, shared a similar message during an ABC broadcast special.

“Every four years we are told the same thing, that this is the most important election of our lifetime,” Markle said in the video. “But this one is.”

“When we vote, our values are put into action and our voices are heard. Your voice is a reminder that you matter, because you do and you deserve to be heard.”