We do offer a regular high school diploma. While it is not accredited, nor is it a GED, it is widely accepted by most schools, institutions, military services, etc.

On a few occasions, I have heard of a publicly funded community college that did not accept our high school diploma because we are not accredited. These rare occasions are the only situations of which I am aware.

The best course of action would be to contact the institution in question to find out exactly what they require, as all schools are different. If they require an accredited diploma, then you may want to withdraw from HCPA and register with the county for the last year of high school. I would also highly suggest you contact HSLDA to let them know you were denied. This is a home education rights issue they have seen and dealt with before.