The American Christian Academy Extension Campus (ACAEC) program has been in existence since the early 1980s, originating under Northstate Schools and continuing under American Christian Academy since 1989. The program is non-denominational, meaning it is not affiliated with any one local Christian church, but deliberately and explicitly Biblical. ACAEC is governed by a five to seven member Board of Directors who are Christian businessmen and members of local evangelical churches.

At present, the extension campus program extends to several counties including the following counties: Alameda, Butte, Contra Costa, Del Norte, El Dorado, Glenn, Humboldt, Lassen, Napa, Placer, Sacramento, Shasta, Siskiyou, Solano, Sonoma, Tehama, and Trinity. Independent study programs such as ACAEC are not eligible for accreditation by those agencies which accredit public high-schools and colleges.

ACAEC home school program provides:

For the parents:

• Quarterly Support Group Meetings
• Parent Training in the Principle Approach
• Coverage by ACA Private School Affidavit
• Curriculum Counseling
• Report Cards
• HSLDA discount
• PSAT Testing for 7th-12th grades for a small fee

For the students:

• Work Permits
• Concurrent Enrollment Forms
• Transcripts
• Student Identification Cards
• Graduation Ceremonies for 8th and 12th grade
• Diplomas for 8th and 12th grade