American Queen Steamboat Company and Victory Cruise Lines will require passengers to have a COVID-19 vaccination beginning July 1, according to parent company Hornblower Group. The requirement applies to ship crew and shoreside employees as well. Saga Cruises, a U.K.-based cruise line, previously said they would require passengers to be vaccinated.

The vaccine mandate is part of the lines’ health and safety measures, which also include pre-cruise COVID-19 testing of guests and crew and mask mandates in all public spaces where social distancing is not possible. Hornblower said this will also protect the communities visited on cruises.

With the majority of the brand’s cruise guests in the 65 and older community, most should be eligible now or will be soon to receive the vaccination. If a passenger cannot receive both doses before their scheduled trip, they can rebook on a future sailing.

“A vaccination requirement for both our guests and crew is the most prudent next step to ensure that we are providing the safest cruising experience possible,” said John Waggoner, CEO and founder, American Queen Steamboat Company. “Our new vaccination requirement, coupled with comprehensive health and safety protocols and risk-free booking policy, will give our loyal guests another added level of assurance to join us as we return to sailing.”