[…] the local domain is approximatively the minimal clause containing the pronoun. - Chomsky (1995), a pag.95
The local domain, or "governing category" as it is frequently called, involves reference to government, roughly as in (217), as a first approximation. (217) The governing category (GC) of α is the minimal clause containing α and a governor of α. - Chomsky (1995), a pag.101