Further conventions were adopted at the regional level under the aegis of the Organization of American States (OAS or OEA), the African Union, and in 2003, at the universal level under that of the United Nations Convention against Corruption.
What is OAS?
Organization of American States

Under the Royal Assent Act 1967, royal assent can be granted by the sovereign in writing, by means of letters patent, that are presented to the presiding officer of each house of parliament. Then, the presiding officer makes a formal, but simple statement to the house, acquainting each house that royal assent has been granted to the acts mentioned. Thus, unlike the granting of royal assent by the monarch in person or by Royal Commissioners, the method created by the Royal Assent Act 1967 does not require both houses to meet jointly for the purpose of receiving the notice of royal assent. The standard text of the letters patent is set out in The Crown Office (Forms and Proclamations Rules) Order 1992, with minor amendments in 2000. In practice this remains the standard method, a fact that is belied by the wording of the letters patent for the appointment of the Royal Commissioners and by the wording of the letters patent for the granting of royal assent in writing under the 1967 Act ("... And forasmuch as We cannot at this time be present in the Higher House of Our said Parliament being the accustomed place for giving Our Royal Assent...").
Which document formats the letters patent?
The Crown Office (Forms and Proclamations Rules) Order 1992

During his period in Milan, Montini was known as a progressive member of the Catholic hierarchy. Montini went new ways in pastoral care, which he reformed. He used his authority to ensure that the liturgical reforms of Pius XII were carried out at the local level and employed innovative methods to reach the people of Milan: Huge posters announced that 1,000 voices would speak to them from 10 to 24 November 1957. More than 500 priests and many bishops, cardinals and lay persons delivered 7,000 sermons in the period not only in churches but in factories, meeting halls, houses, courtyards, schools, offices, military barracks, hospitals, hotels and other places, where people meet. His goal was the re-introduction of faith to a city without much religion. "If only we can say Our Father and know what this means, then we would understand the Christian faith."
What part of Catholic ministry did Montini seek to reform?
pastoral care