The Repatriation Committee was a diplomatic body apart of the Romulan Star Empire, and was used for the return of captured war prisoners by the Romulans.
The Committee had been formed by at least 2375, as the primary mission was to return prisoners of war from the Dominion War.
In 2385, it was headed by the Romulan Major Varis, who was contacted by Starfleet Captain Ro Laren on behalf of the Cardassian Nestor Mhevita Pa'Dan. Pa'Dan had been curious about her son, Terek Pa'Dan, who had stopped being heard from ten years prior. (DS9 novel: The Missing)