interstate agreementglossary / INTERSTATE AGREEMENT interstate agreement. An agreement between states. Cf. interstate compact under COMPACT. [Cases: States6. C.J.S. States §§ 31–32, 143.] 词条贡献者 资深译员David,毕业于亚洲顶尖的高级翻译学院,擅长翻译有关汽车业的法律文件。