Provisions have also been made to ensure that Prince Archie and Princess Lilibet are included in the service at the Abbey, as well as the committal ceremony at St George's Chapel in Windsor, should they choose to attend.
Though there is no indication that the King's health is a cause for concern or that his reign is nearing its end, planning for major royal ceremonies, including funerals, is typically done many years in advance.
These plans are shaped and refined over time through detailed discussions with senior royal aides, security officials, military leaders, and representatives of the church.
The King's funeral will follow the framework established under Operation London Bridge, the same codename used for previous monarchs. However, Charles has made several personal adjustments to reflect his own beliefs and values.
Notably, his deep commitment to environmental causes will be acknowledged through the inclusion of eco-conscious, sustainable elements throughout the ceremony, where possible.
Another key change lies in the mourning period. Unlike Elizabeth II's funeral, where royal mourning continued for a week beyond the service, Charles has reportedly opted to align the royal mourning period with the national one.
This will begin at the moment of his passing and conclude on the day of the funeral, expected to be held 10 or 11 days later.
As with all major royal events, thorough logistical planning is already in place to prepare for every possible scenario surrounding the King's passing, including the location of his death.
Protocols have been carefully outlined to ensure that, wherever the King may be, his coffin can be transported with dignity and precision back to Buckingham Palace.
Still, Palace aides have emphasized that the "King's funeral plans had not been finalized and cautioned against speculation," noting that the funeral plans remain subject to change and refinement over time.