ROME — Pope Francis has issued a highly anticipated law for Vatican City officials and diplomats overseas to tackle sexual abuse, setting up what is intended to be a model for the Roman Catholic Church worldwide by requiring, for the first time, that accusations be immediately reported to Vatican prosecutors.

The Vatican characterized the law — and accompanying pastoral guidelines — as a reflection of the most advanced thinking on preventing and addressing sexual abuse in the church. The law, dated March 26, calls on church authorities to listen immediately to people who say they are victims and to report any credible allegations to prosecutors.

Those who fail to report could be subjected to financial penalties and jail time.

“Protection of minors and vulnerable people is an essential part of the evangelical message that the church and all of its members are called to spread across the world.” the pope wrote in a personal edict enacting the law. Francis said he wanted to “strengthen the institutional and regulatory framework to prevent and tackle abuses against minors and vulnerable people.”

In a statement on Friday, Alessandro Gisotti, the Vatican’s spokesman, said that Pope Francis had hoped that though the measures applied to the Vatican City State and its administration, “everyone might develop in their awareness that the church must always be ever increasingly a safe home for children and vulnerable persons.”