interjurisdictional
adjective
in·ter·ju·ris·dic·tion·al ˌin-tər-ˌju̇r-əs-ˈdik-sh(ə-)nəl 
: occurring between or involving two or more jurisdictions
an interjurisdictional agreement
interjurisdictional competition
Word History
First Known Use
1888, in the meaning defined above