How many high school credits can I award for History Odyssey Level 3 guides?

Pandia Press is not an accrediting agency and does not offer high school credits. However, an accrediting institution has informed us that each level three course would count for at least one full history (social studies) credit, one full literature/writing (English) credit (if a formal writing course is added), and possibly a half credit for geography. Many customers have told us that their high school accredited institutions have approved HO courses.