Interstate law
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
That branch of private international law which affords rules and principles for the determination of controversies between citizens of different states in respect to muinal rights or obligations, in so far as the same are affected by the diversity of their citizenship or by diversity in the laws or institutions of the several states.
Defined under Interstate in Black's Law Dictionary.