Open eClass complies with the SCORM 1.2 specification.
The SCORM (Sharable Content Object Reference Model) is a set of specifications and standards for web-based e-learning. Users can deliver SCORM content via Open eClass by uploading any SCORM or AICC package to course. The best place for information on SCORM 1.2 is https://www.adlnet.gov/past-projects/scorm/
SCORM 1.2 is supported and Open eClass passes all the tests in the ADL Conformance test suite 1.2.7 for SCORM 1.2. Specifically, it is included in SCORM Adopters List https://www.adlnet.gov/assets/uploads/SCORMAdoptersLocked2016.xlsx
SCORM 2004 is not supported in Open eClass - parts of the basic SCORM 2004 API were implemented and some SCORM 2004 packages may appear to work,