Which of the following is true about U.S.-Mexico SAR accords?

• A. Both the 1935 treaty and the 1989 agreement exist
• B. Only the 1935 treaty exists
• C. Only the 1989 agreement exists
• D. Neither exists

Answer: (A)

When countries cooperate on search and rescue, the legal foundation often comes from more than one instrument. For U.S.-Mexico SAR, there is a long-standing treaty from 1935 that sets the broad framework for assisting one another in maritime and border-area rescue efforts. In 1989, a separate agreement was added to update how the cooperation works in practice—clarifying procedures, responsibilities, and channels for notification and joint action.

So, the truth is that both instruments exist and together they shape current SAR operations across shared waters and the border region. The 1935 treaty provides the enduring framework, while the 1989 agreement updates and implements those obligations with modern procedures. This is why that statement is correct: there are two distinct but complementary agreements in place.