Prince Harry and Meghan Markle's return to Britain hasn't changed their position within the monarchy, according to formal guidance issued on behalf of King Charles III that says the Duke and Duchess of Sussex remain non-working members of the Royal Family and operate in a capacity "akin to private citizens with commercial and charitable interests."

The Sept. 7 letter, issued by Lord Chamberlain Lord Richard Benyon on the King's behalf, was circulated after Harry and Meghan returned to the UK with Prince Archie and Princess Lilibet on Aug. 26. The guidance was sent to government departments, military officials and lord lieutenants, as well as to the Sussexes' office, following "a number of requests for guidance" about their status.

"It is well known that in January 2020 the Duke and Duchess stepped down from undertaking representative duties on behalf of The Sovereign, and are no longer working Members of The Royal Family," the letter stated.

The document said that arrangement would "continue to be fully respected," drawing a firm administrative line between Harry and Meghan's decision to live in Britain again and their former roles representing the monarch. Their move therefore doesn't amount to a restoration of royal duties or a return to the working institution.

The distinction addresses questions that emerged after the Sussex family relocated from California, where Harry and Meghan had lived for several years. Their presence in Britain puts them physically closer to the Royal Family and major royal events, but doesn't change the framework established when they stepped back from official duties in 2020.

The letter also confirms that Harry and Meghan's His and Her Royal Highness styles remain in abeyance and aren't used. The couple retain their Duke and Duchess of Sussex titles, and Harry remains a prince, but those positions don't authorize them to carry out engagements on the Sovereign's behalf.

A spokesperson for Harry and Meghan said the couple were "surprised" by the letter and weren't given an opportunity to contribute to it before it was distributed. The response suggested that the Sussexes had received limited advance notice of how their status would be described to government and other public bodies.

The guidance nevertheless largely restates the arrangement that has governed the couple's relationship with the monarchy for more than six years. It makes clear that their independent charitable activities aren't to be treated as extensions of the Royal Household.

Harry and Meghan's charitable work is "a personal matter for them both and undertaken in their private capacity," according to the letter. It describes their broader position as "akin to private citizens with commercial and charitable interests."

That language is significant because both have developed organizations, media projects and charitable initiatives since leaving working royal life. Under the guidance, those activities remain institutionally separate from engagements conducted by King Charles, Queen Camilla, Prince William and other working members of the Royal Family.

Administrative questions involving the Sussexes should consequently be directed to the couple's own office rather than the Royal Household, according to the guidance. Questions concerning security are to be handled by the appropriate authorities rather than Buckingham Palace.

Security has long been a contentious issue for Harry, who has pursued legal challenges over the protection available to him and his family while in Britain. The new guidance doesn't set out a revised security arrangement and doesn't suggest that moving back to the UK automatically gives the Sussexes the same protection structure as working royals.

The separation between private and official roles is likely to be particularly relevant when Harry appears at events connected with the Invictus Games Birmingham 2027, scheduled for July 10 through July 17. Harry founded the international sporting competition for wounded, injured and sick service personnel and veterans and remains patron of the Invictus Games Foundation.

His work with Invictus therefore derives from that independent position, rather than an assignment from King Charles. An appearance at the Birmingham Games wouldn't, by itself, represent a resumption of official royal duties.

The Palace guidance is also narrower than some of the broader questions surrounding the Sussexes' return. It doesn't affect Harry's position in the line of succession, remove his royal title or change the succession status of Archie and Lilibet.

Nor does living in Britain prevent Harry and Meghan from pursuing commercial ventures. Reports have separately circulated that Meghan could become involved with Netflix's "The Gentlemen," but no casting announcement has confirmed such an appearance.