Does severance delay my unemployment claim? (Atlanta)

My employer is paying severance in instalments and I am not sure whether to file now. It has been a long 3 weeks. The agreement mentions a release and a payment schedule. Who should I ask before signing?

Rules differ by state. I called the claims line and asked directly, then wrote down the answer and the date.

Some states only count certain kinds of severance. A local workforce centre could tell me which.