What is the structure of the SRIA courses?

Nine Grades divided across three governing Orders form the structure of the Societas Rosicruciana in Anglia, as the society's official website outlines.

Individual Colleges govern the First Order, which consists of Grade I (Zelator), Grade II (Theoricus), Grade III (Practicus), and Grade IV (Philosophus).

Provinces govern the Second Order, comprising Grade V (Adeptus Minor), Grade VI (Adeptus Major), and Grade VII (Adeptus Exemptus).

The Supreme Magus alone governs the Third Order, which holds the highest two stages: Grade VIII (Magister) and Grade IX (Magus). An article on Beyond the Craft likewise details this structure across the local, provincial, and supreme levels.