The Basque language public network relies on state funding and management, allocated in Spain by the education institutions of the Basque Autonomous Community and Navarre in their corresponding territories, while in France the association Ikas-Bi in the public network advocates for bilingual education.
The private networks base their activity on the fees paid by parents, popular subscription (either directly or by means of annual massive festivals, e.g. Herri Urrats, Nafarroa Oinez, Araba Euskaraz, etc.)
During his term as Basque minister for education, the Socialist Fernando Buesa proposed the 1993 Law of the Basque Public School, prompting ikastolak to choose between full integration in the public system or operating under the rules for chartered private schools.
Basque language schools in the north of Navarre do not enjoy the same support from the regional government as they do in the BAC, but they are officially recognised and enjoy widespread local support (traditionally Basque speaking), unlike central and southern areas of Navarre, where they lack public recognition and funding, remaining in a legal limbo until 2007.
In the French Basque Country, the ikastolak developed later, but grew steadily, so much so that a network, Seaska, is now widespread throughout the whole territory covering education up to the A levels.