1) The Inter-American Convention on Letters Rogatory establishes procedures for transmitting and executing letters rogatory, or requests for judicial assistance, between member states of the Organization of American States for civil and commercial matters.
2) Letters rogatory must meet certain requirements like being properly legalized and translated before they can be executed. They can be transmitted through judicial, diplomatic, or central authority channels.
3) The convention provides rules for how letters rogatory will be executed according to the laws of the receiving state and allocates responsibility for costs. It also allows some flexibility if requested by the issuing state.